Fireproof tuyere

The utility model relates to the technical field of fireproof tuyeres, and discloses a fireproof tuyere which comprises a main frame body, a window frame is clamped in the front face of the main frame body, a louver board is fixedly connected in the window frame, a cleaning sleeve is slidably connected to the outer portion of the louver board in a sleeved mode, and positioning clamping rods are fixedly connected to the two sides of the window frame. Adjusting grooves are formed in the two sides of the bottom of the main frame body, and adjusting screw rods are rotationally connected into the adjusting grooves in a sleeved mode. According to the fireproof tuyere, when the fireproof tuyere needs to be conveniently installed in a main frame body, a positioning clamping rod is clamped in a notch of the main frame body firstly, a window frame is fixed in the main frame body through a nut outside the positioning clamping rod, and when dust on the surface of a louver board needs to be cleaned, a cleaning sleeve is s