Highway maintenance watering trolley

The utility model relates to the technical field of watering trolleys, and discloses an expressway maintenance watering trolley which comprises a watering vehicle and a water tank, the water tank is fixedly installed in a vehicle hopper of the watering vehicle, two linear fixing frames are vertically installed at the tail of the watering vehicle, the left side surfaces of the two linear fixing frames are fixedly connected with arch-shaped frames, and the arch-shaped frames are fixedly connected with the water tank. The upper side and the lower side of each arch-shaped frame are each provided with two adapter columns, the two ends of the two adapter columns on the upper side and the lower side are each provided with a side fixing frame, and the surfaces of the side fixing frames are fixedly connected with connecting frames. The driving motor is used for driving the driving belt to wind, so that the side fixing frame on the arch-shaped frame can be driven by the driving belt to move up and down, the sprinkler c