Fully-sealed belt conveyor

The utility model relates to a belt conveyor, in particular to a full-sealed belt conveyor which comprises a machine frame and a conveying device. The conveying device comprises a driving roller, a driven roller and a belt. An upper belt supporting roller is arranged close to the lower surface of the upper belt, and a lower belt supporting roller is arranged close to the lower surface of the lowerbelt. Supporting plates inclining upwards in an inclined mode are arranged at the two ends of the upper belt supporting roller, the upper portions of the supporting plates are connected to the rack,a cover plate is arranged above the rack, the supporting plates and the cover plate are arranged in the length direction of the belt in an extending mode, the belt on the upper portion is located on the upper belt supporting roller and the supporting plates at the two ends of the upper belt supporting roller, and grooves used for containing materials are formed. And the belt, the two supporting plates and the cover plate f