Photo taken on Sept. 4, 2019 shows an interior view of the Beijing Daxing International Airport in Beijing, capital of China. (Xinhua/Zhang Chenlin)

Beijing Daxing International Airport,which is expected to be one of the world's busiest air traffic hubs, will be put into operation soon.

BEIJING, Sept. 5 (Xinhua) -- The new Beijing Daxing International Airport has completed a key check and a final review in its application for an operating license.

The airport has completed the general check before acceptance in the civil aviation professional engineering industry and the final review before being awarded a license, according to the Civil Aviation Administration of China(CAAC).

Next, after all the problems found in the check and review have been rectified, and with the approval of the CAAC North China Regional Administration, the CAAC will award a license to the Beijing Daxing International Airport, according to the CAAC.

The two key procedures are a comprehensive inspection and evaluation of airport engineering quality, construction scale, facility function, investment completion and operation preparation, according to the CAAC.

Located 46 km south of downtown Beijing, the new airport will start operation in September. It is expected to handle 45 million passengers annually by 2021 and 72 million by 2025.

Exterior view of the terminal building of the Beijing Daxing International Airport in Beijing, capital of China. (Xinhua/Cai Yang)

Exterior view of the terminal building of the Daxing International Airport in Beijing, capital of China. (Xinhua/Cai Yang)

Photo taken on Sept. 4, 2019 shows an interior view of the Beijing Daxing International Airport in Beijing, capital of China. (Xinhua/Zhang Chenlin)

Photo taken on Sept. 4, 2019 shows an interior view of the Beijing Daxing International Airport in Beijing, capital of China. (Xinhua/Zhang Chenlin)

A staff member debugs equipment in the Beijing Daxing International Airport in Beijing, capital of China. (Xinhua/Zhang Chenlin)

Photo taken on Sept. 4, 2019 shows an interior view of the Beijing Daxing International Airport in Beijing, capital of China. (Xinhua/Zhang Chenlin)

Photo taken on Sept. 4, 2019 shows an interior view of the Beijing Daxing International Airport in Beijing, capital of China. (Xinhua/Zhang Chenlin)