Back dehumidifying device of stove blower

The present invention belongs to the technical field of air cooling dehumidifying, in particular relates to the blower device for blast furnace ironmaking in the metallurgy industry, and especially relates to the back dehumidifying device of stove blower. The high-temperature segment of AAH heat exchanger according to the invention is connected with a dehumidifying cooler through pipe. The dehumidifying cooler is connected with the low-temperature reheating part of AAH heat exchanger. The process gas from the blower is pre-cooled at the high-temperature part of AAH heat exchanger. The process gas is cooled in the dehumidifying cooler for eliminating the moisture in the process gas. The process gas is reheated at the low-temperature reheating part of AAH heat exchanger and is sent to an overheat air furnace. The normal-temperature water is used as coolant in the dehumidifying cooler through the water pump and pipe for eliminating the moisture in the process gas. The back dehumidifying device of stove blower ac