Road sweeping vehicles

The invention provides a road sweeper which comprises a sweeper body, material suction pipelines, sweeping devices and a draught fan. The sweeper body is provided with a dustbin; the first ends of the material suction pipelines extend to the positions below the sweeper body, and the second ends of the material suction pipelines extend into the dustbin; each sweeping device is provided with a dust suction air pipe, and each dust suction air pipe is connected with the pipe wall of the corresponding material suction pipeline and communicates with the corresponding material suction pipeline; and the draught fan is arranged on the sweeper body, the air inflow side of the draught fan communicates with the dustbin, and a negative pressure region is formed in the dustbin. By the adoption of the road sweeper, the safety accidents caused by road freezing due to the fact that water is sprayed to reduce dust can be effectively avoided; and on the premise that the dust removing effect is guaranteed, the road operation construction reliability is improved. The road sweeper can be used in winter, so that the problem that equipment is idle is effectively solved.