The invention provides a spraying dedusting vehicle, and belongs to the technical field of vehicles. The technical problem that an existing dedusting vehicle has potential safety hazards is solved. The spraying dedusting vehicle comprises a vehicle body and a water tank fixed to the vehicle body, the water tank is provided with a straight installation surface, the installation surface is providedwith a spraying pipe which can atomize and spray water in an inner cavity of the water tank, an opening of the spraying pipe faces the upper front portion of the dedusting vehicle, and a support rod and a hydraulic cylinder are installed on the installation surface; the spraying dedusting vehicle further comprises a water blocking bucket which comprises multiple water blocking pieces, the two endsof the water blocking pieces are hinged to the support rod and make the spraying pipe surrounded by the water blocking pieces, the adjacent water blocking pieces are connected through multiple stay cords, the hydraulic cylinder is connected with a hydraulic pump which is connected with an oil tank, and a reflowing hole communicated with the oil tank is formed in the cylinder wall of the hydrauliccylinder. The spraying dedusting vehicle has the advantages of being capable of reducing road potential safety hazards and the like.