Heavy-duty car tire cooling device and heavy-duty car

The utility model belongs to the technical field of heavy traffic equipment, and particularly relates to a tire cooling device of a heavy-duty car and the heavy-duty car. The spraying device is arranged at the position, above the tire, of the fender, the spraying opening of the spraying device is connected with the water tank, water pressure is increased through the water pump to enable the spraying opening to spray water, the water pump is controlled by the controller, the controller can achieve automatic water spraying according to temperature measurement of the temperature measuring device, manual water spraying is replaced, labor force is saved, and more convenience is achieved. Due to the fact that the three spraying openings in the position of the fender on the tire are distributed in the front, the middle and the rear of the fender, right face the tire and face the tire, and the spraying openings are provided with the atomizing nozzles, water is sprayed more evenly, and damage to the tire caused by une