Train air duct cleaning device and cleaning method

The invention discloses a train air duct cleaning device and method.The train air duct cleaning device comprises a cleaning robot, two water conveying pipes and two water storage containers, the cleaning robot is provided with a water outlet pipe and a water inlet pipe, the two water conveying pipes are communicated with the water outlet pipe and the water inlet pipe respectively, and the two water storage containers are communicated with the water outlet pipe and the water inlet pipe respectively. Wherein one water storage container is communicated with a water inlet pipe and used for storing cleaning water, the other water storage container is communicated with a water outlet pipe and used for storing cleaning sewage, and the water inlet pipe is communicated with a water pump. The train air duct cleaning device has the beneficial effects that the train air duct cleaning device is placed in the train air duct through the air outlet and then controlled to move in the train air duct to wipe and clean the inner