Novel cooling circulation device

The utility model discloses a novel cooling circulation device, which belongs to the technical field of coal mine equipment cooling and comprises a top cylinder, an air cylinder is fixedly mounted in an inner cavity of the top cylinder, a return pipe is fixedly mounted at one end of the air cylinder, the other end of the air cylinder is connected with a pump box through a connecting pipe, an air inlet pipe is fixedly mounted at the other end of the pump box, and a motor is fixedly mounted on the outer wall of the pump box. An adjusting gear is fixedly installed at the output end of the motor, a pressing plate is in sliding fit with an inner cavity of the pump box, a reciprocating plate is fixedly installed on the side wall of the pressing plate, racks are evenly arranged on the two sides of an inner cavity of the reciprocating plate, one-way valves are installed on the two sides of the pump box respectively, teeth are evenly arranged on the half circumference of the edge of the adjusting gear, and the adjusti