Self-cleaning device of air-conditioning filter screen

The invention relates to an air conditioner, in particular to a self-cleaning device of an air-conditioning filter screen. The self-cleaning device is arranged on a bracket, the bracket is arranged at an air inlet on a shell of an air conditioner indoor unit, the bracket is provided with a filter screen, a sweeper and a dust collector, the dust collector comprises a dust collection box shell, thedust collection box shell is provided with a dust collection box, a brush roll and a B driving motor, the brush roll is connected with the B driving motor, and the dust collector is used for transferring the dust on a brush cleaner in the sweeper into the dust collection box. The self-cleaning device can automatically clean the air conditioner indoor unit and the filter screen nearby the air inlet, and the sweeper can sweep the filter screen at any time under the remote control of a remote controller.