Pneumatic rock drill reduces noise and deoiling device

Pneumatic rock drill reduces noise and deoiling device, including the polyurethane casing, the copper sintered body, the multilayer silk screen, the polyurethane casing is hollow ghost form, the left side of polyurethane casing is equipped with the connector, the shape and the rock drill gas vent shape looks adaptation of connector, the downside of polyurethane casing is equipped with down the gas outlet, the right side of polyurethane casing is equipped with right gas outlet, copper sintered body and multilayer silk screen are located the polyurethane casing, the multilayer silk screen is close to the inner wall of polyurethane casing neighbouring mutually, the event makes noise reduction to below the 98dB, the compressed air who contains lubricating oil in its work, when silk screen through the different mesh numbers of multilayer and copper sintered body, the compressed air velocity of flow slows down, make the oil mist granule of suspension gather again, it drips and to get rid of to condense into great o