Pulverized coal fired boiler burner with low-nitrogen combustion treatment function

The utility model relates to the technical field of pulverized coal fired boiler combustors, in particular to a pulverized coal fired boiler combustor with a low-nitrogen combustion treatment function, which comprises a bottom plate, an air blower is arranged at the top of the bottom plate, a barrel is arranged on one side of the air blower, a flow baffle is fixed at one end of the inner wall of the barrel, a distance ring is arranged on one side of the flow baffle, and a baffle is arranged on the other side of the distance ring. And a feeding cylinder is arranged between the flow baffle and the spacer ring, a servo motor is installed on the outer wall of one side of the feeding cylinder, and the inner walls of the two sides of the feeding cylinder are rotationally connected with smashing rollers engaged with each other. Air entering the barrel is blocked through the flow baffle, the air enters the barrel through the through holes in the flow baffle, the entering amount of the air is reduced, the amount of co