Dry type desulfurizing, spraying and humidifying device and spraying and humidifying method

The invention relates to a purifying technology of coal burning smoke, in particular to a dry type desulfurizing, spraying and humidifying device and a spraying and humidifying method. The front of the entrance of a dry type desulfurizing tower of the device is connected with a section of vertical pre-humidifying flue, and the pre-humidifying flue is internally provided with an atomizing nozzle, wherein a water pass quantity regulating device and an air regulating device of the atomizing nozzle are respectively connected with a water pump and an air compressor; the water quantity regulating device and the air regulating device are controlled through a controller; a detection signal input part of the controller is connected with a thermoelectric couple at a smoke outlet; the dry type desulfurizing tower is internally provided with a set of single-layer nozzles close to a smoke inlet, wherein the jet directions of the single-layer nozzles are the same as the flowing direction of smoke; and fog plumes of each no