Dust fall spraying device for road maintenance operation

The utility model discloses a dust-falling spraying device for road maintenance operation. The dust-falling spraying device comprises a spraying cylinder, a supporting and mounting part and a recycling part, the spraying device comprises a spraying barrel, the spraying barrel is of a hollow structure, the inner diameter of the spraying barrel is gradually reduced from the middle to the front end and the rear end, and a spraying part is arranged at the front end of the spraying barrel. The defect that waste is easily caused due to the fact that part of water cannot be normally sprayed out in the traditional spraying process is overcome, water resources are saved, and national sustainable development strategic requirements are met; through the supporting installation part, the device can be fixed, and the height of the device can be adjusted, so that the spraying range of the device is adjusted, the defect that the spraying range of a traditional spraying device is adjusted by depending on the air outlet intens