Wear-resistant coal conduit

A wearable coal dropping pipe comprises a coal inlet, a coal outlet and a pipe wall. The coal dropping pipe is characterized in that a turning place of the pipe wall is a circular arc and a surface, which is liable to be worn, is thicker than other surfaces. The utility model replaces the inclined tube transition with the circular arc transition, which reduces the frictional force and makes the coal dropping more fluent. The surface liable to be worn increases the thickness, adopts a highly antiwear material and ensures a long using period. The utility model does not need the drilling, has a good seal condition, a small powder dust and a great environmental protection effect and prevents the coal from blocking, which is in favor of the safety production. The utility model is widely applied in the coal dropping pipe of the coal conveying system of the belt conveyors with the belt width of B500, B650, B1000, B1200, B1400 etc.