Cooling device of centrifugal casting machine

The utility model provides a cooling device of a centrifugal casting machine. The casting device comprises a casting barrel, an anti-falling piece arranged at one end of the casting barrel and an aircylinder arranged at one end of a rotating arm on the casting barrel. An air inlet hole is formed in the anti-falling part; the air cylinder comprises a cylinder body, a piston arranged in the cylinder body and an elastic piece connected to one side of the piston. An air inlet is formed in one side of the cylinder body, the air inlet is connected through a pipe body and extends to be connected with the air inlet hole, an exhaust hole is formed in the side, opposite to the air inlet hole, of the cylinder body, and the elastic piece is arranged between the piston and the end, provided with the exhaust hole, of the cylinder body. According to the cooling device of the centrifugal casting machine, air in the casting barrel can enter the casting barrel through the air cylinder, castings are cooled, and the situation th