Vacuum top rifle head

The utility model discloses a vacuum top rifle head, its structure includes that the rifle is personally experienced sth. Part of the body and top rifle copperhead, the one end of the rifle body is equipped with oxygen interface, coal gas interface, water inlet and return water mouth, and the other end of the rifle body is equipped with a rifle copperhead, internal wet return, inlet tube, oxygen hose and the gas pipe of being equipped with of rifle, the gas pipe is put to the outside cover of oxygen hose, and the inlet tube is put to the outside cover of gas pipe, and the wet return is put to outside the overlapping of inlet tube, be equipped with a support of taking the through -hole between inlet tube and the wet return, the end face centre department of top rifle copperhead be equipped with with the communicating oxygen output of oxygen hose, top rifle copperhead terminal surface circumferencial direction evenly is equipped with a plurality of and the export of the communicating coal gas of gas pipe. This