Blast furnace residual iron shedding device

The utility model discloses a blast furnace residual iron shedding device, which comprises a body, a rotation body arranged at the lower end of the body, a drill rod arranged at one end of the rotation body, and pneumatic propulsion components arranged inside the upper end of the body, wherein the pneumatic propulsion components comprise a pneumatic motor and a screw which are connected; the pneumatic motor and the rotation body are communicated with a high-pressure air source respectively; and the screw passes through the upper end of the body and is in threaded fit with the body. The shedding device controls the screw to rotate through the pneumatic motor, so that the drill rod can advance at constant speed to hole; the shedding device guides through guiding components on both sides to improve stability so as to ensure the constancy of inclination angle of the drill rod and improve the effect of placing residual iron; and in addition, the shedding device can improve working condition and ensure operation sa