Dedusting device for road and bridge construction

The invention relates to a dedusting device for road and ridge construction. The problems that existing water mist spraying dedusting cannot radically treat dust of a construction site, and a lot of human and material resources are wasted are effectively solved. According to the technical scheme, the device comprises a dedusting vehicle, a dust collector is arranged at the lower end of the dedusting vehicle, the dust collector is communicated with a dust collection box arranged in a carriage through a dedusting duct, and an air outlet pipe is communicated with the upper end of the dust collection box; a dust outlet hole is formed in the lower end of the dust collection box, a dust conveyor belt is arranged on the lower portion of the dust outlet hole, a funnel is arranged on the lower portion of the other end of the dust conveyor belt, a water tank is fixedly arranged on the upper portion of the funnel, and a water outlet valve arranged at the upper end of the funnel is arranged at thelower end of the water t