Drum screen wall vibrating device

The utility model relates to a solid material cleaning device, in particular to a drum screen wall vibrating device arranged outside a drum screen. A supporting rod is arranged right above the drum screen, an iron ball in contact with the surface of the drum screen is hung on the supporting rod through a rope, and angle iron bars in a circle are arranged on the outer wall of the drum screen uniformly. The solid material cleaning device has the advantages that the solid material cleaning device is simple in structure and reasonable in design; the iron ball is held up through the iron bars arranged on a drum and then drops on the drum screen under the action of gravity to achieve vibration so as to clear particles clamped in meshes, and cleaning efficiency of drum screen is improved, so that production efficiency is improved.