Hydrogen low-nitrogen burner

The utility model discloses a hydrogen low-nitrogen burner which comprises an injection assembly, one side of the outer wall of the injection assembly is fixedly connected with a hydrogen connector, the outer wall of the injection assembly is fixedly connected with a mounting seat, an automatic limiting device is arranged on the mounting seat, and by arranging the automatic limiting device, when an outer sleeve needs to be disassembled, the outer sleeve can be disassembled by pulling a limiting rod; and the limiting rod drives the wedge block to be away from the wedge-shaped groove, the effect of relieving fixing of the outer sleeve is achieved, the purpose of relieving the limiting effect of the outer sleeve by rotating multiple sets of bolts B is omitted, the working efficiency of disassembling the outer sleeve is improved, and when the outer sleeve needs to be installed, the outer sleeve is moved along the inner wall of the installation groove, so that the outer sleeve is conveniently disassembled. And thr