Bone mill drill bit with liquid pumping assembly

The utility model relates to the technical field of medical instruments, in particular to a bone grinding drill bit with a liquid pumping component, which comprises a body, the liquid pumping component and a cooling pipe, a connecting column is arranged on the body, a bandage is arranged on the connecting column, a clamping head is arranged at one end of the bandage, a clamping block is arranged at the other end of the bandage, and the liquid pumping component is arranged on the body. The lower end of the body is sleeved with the cooling pipe, a supporting plate is arranged on the outer wall of the cooling pipe, a water pump is arranged on the supporting plate, a water inlet pipe and a water outlet pipe are arranged on the water pump, a refrigeration box is arranged on the water outlet pipe, and a pipeline is arranged between the refrigeration box and the cooling pipe. When in use, the liquid pumping pipe is aligned to a position needing liquid pumping, then the adjusting rod is pulled upwards manually, liqui