Drainage system for refuse dump

The invention discloses a drainage system for a refuse dump. The drainage system comprises an underground concealed culvert pipe, a drainage hose and an anti-impact panel, wherein the underground concealed culvert pipe is embedded into the bottom of a running lane of a dumping flat-plate transportation system and extends to the edges of dumping steps; the drainage hose is laid on a slope surface of the dumping steps, connected with the underground concealed culvert pipe and used for draining end slope effluent or accumulated water to a slope bottom ditch; the anti-impact panel is laid at a slope bottom outlet of the drainage hose. The drainage system for the refuse dump can overcome the defect that a material is washed away by water due to difficulty in preventing a strip mine drainage system from washing the slope surface of the dumping steps with a conventional method, can avoid phenomena of refuse dump sedimentation, collapse, even landslide and the like, and guarantees safe and stable production of a strip mine.