The utility model provides a ventilating and cooling crystallization tower, it adopts the air to be the cooling agent, directly mixes contact heat exchange through air and solution and makes solutioncooling crystallization, and it comprises column equipment, fan equipment and circulating pump equipment, be provided with defroster, liquid distributor, packing layer in the column equipment, material guide cone and water conservancy diversion barrel, the defroster effect is the liquid drop that the deaerate was smugglied secretly, reduces material loss and environmental protection, high purity,the effect of material guide cone and water conservancy diversion barrel improves crystallization effect and prevents that the crystallization from hardening, the utility model discloses ventilating and cooling crystallization tower is showing and has improved cooling crystallization effect, is showing the reduction energy consumption, and has characteristics such as loading and unloading capacityis big, the environmental protection is pollution -free, easy operation.