To widely and efficiently suck refuse or the like.

A box 35 is moved to the outside in the width direction of a traveling vehicle 1 together with a suction port 7a and the like of a suction hose 7, and lowered to a shoulder of the road, and a suction port 5a of a suction hose 5 is lowered, to thereby operate a blower 6 and a collective brush 36. While water is sprayed from a spray nozzle 37 around the collective brush 36, the traveling vehicle 1 travels to clean a road surface. The spray nozzle 37 sprays water in the close proximity to the rotating brush 36, and therefore only a small amount of spray water efficiently suppresses rising of dust. Further, refuse or the like separated from the road surface F by the brush 36 is immediately sucked into the suction port 7a, which also prevents rising of dust.