Novel LED lamp box

The utility model relates to the technical field of outdoor lighting and displaying, in particular to a novel LED lamp box which comprises a lamp box body, a first sliding groove is fixedly formed in the surface of the bottom of an inner cavity in one side of the lamp box body, a motor is fixedly installed in the first sliding groove, and the output end of the motor is rotationally connected with a threaded rod. The lamp box comprises a lamp box body, the lamp box body is provided with a threaded rod, the surface of the threaded rod is in threaded connection with a first sliding block, a connecting shaft is fixedly installed on the surface of the top of the first sliding block, one end of the connecting shaft is rotationally connected with a cleaning brush, and the surface of the cleaning brush makes contact with the surface of one side of the lamp box body. When dust on the surface of the lamp box body is large and the mounting height of the lamp box body is large, automatic dust removal on the surface of th