During the operation of the calcined petroleum coke plant, there is a large amount of heat loss and waste in the cooling process of high-temperature calcined coke, which does not meet the requirements of high-efficiency environmental protection, energy conservation and emission reduction at the present stage, and causes the consumption of fresh water and cooling softened water and treatment costs. The new type coke cooler can not only cool the calcined coke, but also recover the residual heat of calcined coke by using desalted water as the cooling medium, so as to achieve the purpose of energy saving and emission reduction.