Dust removal system and method of shot blasting cleaning equipment

The invention particularly provides a dust removal system of shot blasting cleaning equipment. The dust removal system comprises a shot blasting cleaning main machine. The dust removal system is characterized by further comprising guide rails, movable auxiliary room bodies, an air suction pipeline, a multi-pipe cyclone separator, a cartridge dust remover, dust cleaning equipment and a dust removalfan; the movable auxiliary room bodies are arranged on the two sides of the shot blasting cleaning main machine separately and put on the guide rails, and the multi-pipe cyclone separator is connected with the shot blasting cleaning main machine through the air suction pipeline; and the cartridge dust remover is mounted behind the multi-pipe cyclone separator, and one side of the cartridge dust remover is connected with the dust removal fan. According to the dust removal system, a cartridge in the cartridge dust remover is effectively protected, the service life of the cartridge is prolonged,the filtering effect of t