The utility model discloses a pneumatic reversing valve. The pneumatic reversing valve comprises a valve body and two valve modules arranged on the valve body, wherein the two valve modules are respectively provided with a slidable piston, a pilot pressure input port, and an air inlet, an air outlet and a bleed hole which are formed in the valve body and are communicated with one another; the first end of the piston is provided with a template and a pressure spring; a sealed pilot pressure cavity is formed between the template and the pilot pressure input port; the second end of the piston is provided with a valve element; when the pressure spring is positioned in a release state, the outer side face of the valve element seals the bleed hole, and the air inlet and the air outlet are connected; when the pressure spring is positioned in a compressed state, the inner side face of the valve element seals a pipeline between the air inlet and the air outlet, and the air outlet and the bleed hole are connected. According to the reversing valve, the opening and closing of each valve port are accurately controlled by independently controlling pilot air, and the pneumatic reversing valve has the characteristics of high flow, quick response, convenience in assembly and disassembly, no special requirement on environment and the like, and is suitable for reversing operation of pneumatic equipment.