The utility model discloses a coolant liquid cyclic utilization nozzle, including mounting panel, siphunculus, the connection shower nozzle at the siphunculus tip, siphunculus one side is provided with the water inlet, and the water inlet is opened has the ring channel, and the ring channel interpolation has the cassette, and the cassette includes the metal frame, sets up filter screen, the pull couple of setting outside the metal frame in the metal frame, the ring channel bottom is provided with the silt groove, and the silt groove is connected with the row's of putting silt passageway to one side. Adopt the utility model discloses the card that can effectively reduce cooling fluid circulation hinders the phenomenon.