Dust removal device for coating processing

The dust collection device for coating processing comprises a dust collection mechanism and a filtering mechanism, the filtering mechanism comprises a filtering kettle, a filter screen is arranged in the filtering kettle, an exhaust hole is formed in the top of the filtering kettle, a drainage pipe is arranged at the bottom of the filtering kettle, a control valve is arranged in the drainage pipe, clear water is injected into the filtering kettle, and the liquid level of the clear water is lower than the filter screen. A stirring assembly is arranged in the filtering kettle, a water inlet pipe is arranged on one side of the filtering kettle, a one-way valve is installed in the water inlet pipe, an external water source can only enter the filtering kettle in a one-way mode through the water inlet pipe, and the one-way valve is self-sealed in the reverse direction. And air with dust enters the filtering kettle through the air pipe, the air with the dust is immersed in clear water, and the stirring assembly is m