The utility model relates to the metallurgical slag processing field, particularly to a slag-raking mechanism. A steel slag-raking machine comprises a telescopic link, a slag-raking head, a wound roll and a corresponding wire rope, a mounting bracket, and a slewing platform. The slag-raking head is arranged at the front end of the telescopic link; and the telescopic link is arranged in the mounting bracket and connected with the wound roll through the wire rope; the middle of the bottom surface of the mounting bracket is hinged on a supporting frame; an oil cylinder, the length of which can stretched, is hinged on the back end of the mounting bracket; the bottom is fixed relative to the supporting frame; the slewing platform comprises a horizontal bottom plate, a bull gear, a denticle shaft which is matched with the bull gear, and a hydraulic motor used for driving the denticle shaft to rotate; the supporting frame and the oil cylinder are fixed on the horizontal bottom plate; and the horizontal bottom plate is fixed on the bull gear. The slag-raking head of the slag-raking machine can move forward and backward, up and down, and left and right so that the metallurgical slag on every position can be quickly raked to the required position.