Dust collecting and treating device

The invention relates to a dust collecting and treating device. The dust collecting and treating device is characterized by comprising a collecting tank. A water level setting line is arranged in the colleting tank. A dust collecting opening is formed in the top of the collecting tank. A dust collecting and balancing device is arranged in the collecting tank. Wheels are arranged at the bottom of the collecting tank. A dust guide groove is formed in the inner wall of the collecting tank. During use, dust collecting liquid accounting for 1/3 of the volume of the collecting tank is loaded into the collecting tank, and accordingly dust can be absorbed sufficiently and dust can be prevented from overflowing and flying off. The dust collecting and balancing device guarantees that the dust entering the collecting tank does not pile up in the middle of the collecting tank, the dust evenly slides towards the periphery of the collecting tank along a collecting hood, the dust can be dissolved in water favorably, and eve