Burning aid for combustion of pulverized coal

The utility model discloses a burning aid for combustion of pulverized coal, which is composed of symmetry type guide ducts, a low pressure ejector, a pressurizing constant heat shield and a primary air blowing coal nozzle. The apparatus for feeding coal by air blast of the burning aid is in a solid cone, and a cone head is aligned to a central line of a coal blowing tube, one end of the apparatus for feeding coal by air blast is connected with an original coal injection nozzle through a flange, and the other end seals the low pressure ejector. A plurality of guide ducts are arranged symmetrically, the outer ends of the guide ducts are connected with the pipe wall of a primary air duct, and the inner ends are connected with the low pressure ejector. The apparatus for feeding coal by air blast and the low pressure ejector are fixed to the center of the primary air blowing coal nozzle, and the peripheries of the guide ducts are provided with a constant heat shield for absorbing secondary hot air and for preventing trash. The utility model can be used for burning pulverized fuel for the production of enterprises.