Fallen leaf sweeping machine

The invention discloses a fallen leaf sweeping machine, and relates to the technical field of fallen leaf cleaning, the fallen leaf sweeping machine comprises a vehicle body, a rotary sweeping mechanism, a sweeping head angle adjusting mechanism and a central rotary joint air supply mechanism, a fallen leaf collecting box is arranged on the rear side of the top of the vehicle body, and a negative pressure fan communicated with the interior of the fallen leaf collecting box is arranged on the top of the fallen leaf collecting box; negative-pressure air pipes communicated with the fallen leaf collecting box are arranged on the left side and the right side of the front end of the vehicle body respectively; the rotary sweeping head mechanism and the negative pressure fan are used for sweeping the ground, the hot-air blower is used for accelerating evaporation of moisture on wet leaf surfaces, surface tension and atmospheric pressure caused by moisture between fallen leaves and the road surface are damaged, the ai