Wall-mounted direct current screen convenient for heat dissipation

The utility model relates to the field of direct current screens, in particular to a wall-mounted direct current screen convenient for heat dissipation, which comprises a main body shell, an air inlet cylinder is fixedly mounted on the lower surface of the main body shell, a drainage frame is fixedly mounted on the outer side surface of the air inlet cylinder in an embedded manner, a bearing is fixedly mounted in a drainage plate, and a clamping rotating shaft is fixedly mounted on the inner ring of the bearing. A filter pipe is fixedly installed on one side of the rear surface of the main body shell, a filter cylinder is movably embedded in the filter pipe, a clamping frame is fixedly installed at the lower end of the inner side surface of the filter cylinder, a motor is fixedly installed in an air inlet cylinder, and a lengthened shaft is fixedly installed at the output end of the motor; and an air inlet fan is fixedly mounted at the upper end of the lengthened shaft. According to the utility model, the hea