Positive-pressure ventilation and cooling system for greenhouse and greenhouse comprising positive-pressure ventilation and cooling system

The utility model relates to the technical field of greenhouse planting, in particular to a positive pressure ventilation cooling system for a greenhouse and the greenhouse with the system, the positive pressure ventilation cooling system comprises a greenhouse main body, a wet curtain device, a positive pressure fan and a ventilation pipe, and a first layer of heat preservation curtain, a second layer of heat preservation curtain and a third layer of heat preservation curtain are horizontally arranged in the greenhouse main body. An air inlet area is arranged on one side of the greenhouse body and located between the first-layer heat preservation curtain and the third-layer heat preservation curtain, an air inlet is formed in one side of the air inlet area, the outer side of the air inlet is covered with a rolling film, the wet curtain device is arranged on the inner side of the air inlet and covers the air inlet, and a positive pressure fan is installed on the other side of the air inlet area. The positive-