This airport is located southeast of the city of Beijing, has good location and good taxi service, is an option if you cannot or don't want go to the giant international airport located at Northeast.
The Chinese military operates a number of commercial scheduled flights off this airport. It is stepping back in time - fast rewind to the 1980's. Very slow check-in. Normal carryon luggage not allowed
If it's hot and you want a private room, opposite of the entrance has rooms upstairs with couches and table and the room has airco. I paid 60rmb for the room, 2 pepsi and some nuts.