The utility model discloses a dangerous waste incinerator feeding subsidiary unit, including material guide box, be equipped with the bull stick in the material guide box, the both ends of bull stickare connected with material guide box's the lateral wall rotation of controlling respectively, the bull stick is fixed and has been cup jointed two shelves poles, and two shelves poles are perpendicular setting, the left end of bull stick runs through material guide box's lateral wall and extends to the outside, the bull stick extends to the fixed bevel gear that has cup jointed of outside one end, material guide box's lateral wall fixedly connected with double -shaft motor, double -shaft motor's fixed the 2nd bevel gear that has cup jointed of one of them output, and the 2nd bevel gear and bevel gear meshing set up, the through -hole has still been seted up to material guide box's lateral wall, and the below that the through -hole is located the bull stick sets up, be equipped with spiralshell rasp bar in the through -hole. The utility model discloses simple structure, convenient operation to the import department that prevents material guide box blocks up, improves the efficiency offeeding, reduces to cause erosive wear to material guide box, has improved material guide box's life.