Simple and easy backup tail rack of fully-mechanized excavating machine

The utility model discloses a simple and easy backup tail rack of a fully-mechanized excavating machine. The simple and easy backup tail rack comprises a rack body, wherein a roller is mounted at the tail part of the rack body; a carrier roller is mounted on the whole rack body; the rack body is a rack body which is welded by 22# steel rails and has the whole length of 18m; supporting legs with the height of 300mm are arranged below the rack body; channel steel is attached on the inner surfaces of the steel rails along the whole length direction of the steel rails; hanging holes are uniformly formed in the channel steel; when the carrier roller is mounted, the two ends of a shaft of the carrier roller are hung on the hanging holes. The rack body is welded by the steel rails and previous rack body guide rails are changed into rails so that the rack body is wear-resisting and is not easy to deform; the rack body and a carrier roller supporting frame are of a splitting structure so that the problems that the fully-mechanized excavating machine runs off the rails to damage carrier roller bracket lugs and the like are avoided; a carrier roller bracket type structure is not used and the whole body of the tail rack is lifted for 300m, so that the simple and easy backup tail rack is easy to clean, a belt is prevented from being abraded by coal waste rock and the service life of the belt is prolonged.