Full face air inlet on both sides, full face cooling filler and two water distribution systems have created efficient heat dissipation effect. The radiator of the product is arranged on both sides to design a larger air flow space. The throat of the fan can be designed larger to increase the air flow surface. The blades of the low-speed wide-leaf aerofoil can be used to reduce the wind resistance and achieve a lower noise value. The huge space inside the tower can be accessed through the access door, which can facilitate the daily maintenance It is applicable to industrial fields with large cooling capacity, high temperature (60-35oC) and large temperature difference (t=5-25oC).