Pneumatic oil pump

The utility model discloses a pneumatic oil pump, which relates to the field of oil pumps and comprises a pump body, an oil outlet is fixedly connected to the end of the pump body, an oil chamber is arranged at the bottom of the oil outlet, a piston cavity is fixedly arranged above the oil chamber, a first one-way valve is fixedly arranged at the bottom of the oil chamber, and an oil inlet is fixedly connected to the bottom of the first one-way valve. An action assembly is movably arranged above the first one-way valve, the upper portion of the action assembly is movably connected with a tangential valve element, and the tangential valve element is movably connected with a tangential valve sleeve. By arranging the main control valve element, the main control cylinder sleeve outer cavity, the action rod and the main control valve chamber, air paths can be smoothly switched, the action rod can rapidly reciprocate, the reaction speed is high, oil supply can be continuously and stably achieved, oil pressure is st