Pneumatic control valve

The utility model relates to the technical field of pneumatic control valves, in particular to a pneumatic control valve which comprises a valve body, a water inlet pipe and a water outlet which are arranged at the two ends of the valve body, a water passing channel used for communicating the water inlet pipe with the water outlet, a driving assembly arranged in the water passing channel and a circular valve plate fixed in the water passing channel. A round groove is formed in the round valve plate and right faces the water inlet pipe, a round valve element plate is rotatably connected in the round groove, an arc-shaped water passing hole is formed in the round valve plate, and a corresponding water passing hole is formed in the round valve element plate and right faces the arc-shaped water passing hole. The driving assembly is used for driving the circular valve core plate to rotate; according to the pneumatic control valve, the rotatable circular valve core plate is used for replacing an original reciprocat