Large display picture dust removal device

The utility model relates to a large-scale display picture dust removal device in the technical field of display, which comprises a bearing body, a dust removal device and a dust removal device, the air supply mechanism is arranged on the back face of the bearing body, an air outlet of the air supply mechanism extends to one side of the front face of the bearing body and stretches across the bearing body, and a certain included angle is formed between airflow blown out of the air outlet of the air supply mechanism and the front face of the bearing body so that the airflow can completely cover the front face of the bearing body. According to the dust removal device, dust removal can be carried out on the displayed picture in an air blowing mode, the air blowing dust removal mode can better control the flow direction of airflow, compared with an air suction dust removal mode in the prior art, the air blowing dust removal mode is larger in dust removal area, and therefore the function of comprehensively removing