Valve milling cooling structure

The utility model discloses a valve milling cooling structure, which comprises a mounting shell and a mounting seat, a cooling bin is arranged on the upper surface of the mounting shell, a positioning groove communicated with the cooling bin is arranged at the bottom of the mounting shell, a cooling unit is arranged in the cooling bin, and the mounting seat is arranged on the mounting shell. The bottom of the cooling unit is fixedly connected with a water drainage pipe and a water return pipe, and the water drainage pipe and the water return pipe are communicated with the interior of the cooling unit. The water drainage pipe and the water return pipe on the head portion of the cooling unit can be inserted into the water inlet and the water outlet in the top end of the milling cutter correspondingly, the cooling unit is started, cooling liquid can circulate between the cooling unit and a cooling loop in the milling cutter, and therefore cooling of the milling cutter is completed. And the milling cutter can be