The invention relates to a device for quickly removing foreign matter for a power transmission line and belongs to the field of power transmission line maintenance equipment. The device is used for removing impurities attached to the periphery of the power transmission line. The device comprises a device body, a driving mechanism arranged on the device body and a drill at the top end of the device body. The device body is spiral and has the degree of freedom of rotating around the axis of the power transmission line under the driving by the drill and the driving mechanism, the drill is of a barrel-shaped structure, the end of the drill is provided with a tooth structure, the outer side wall of the drill is further provided with auxiliary teeth, the device body is of a front-rear split structure, and the front-rear split structure is connected through a plurality of groups of parallel spring torsion bars. The drill and the driving device are adopted to drive the device body to move on the power transmission line, the arranged drill moves forwards along a spiral track, so that the wound impurities can be fully ground and drop from the power transmission line, and it is ensured that the power transmission line runs safely.