The mine hydrodynamic automatic dust reduction system is mainly composed of hydrodynamic dust remover, automatic sprinkler dust reduction device, main control box, touch sensor, heat release sensor, equipment start and stop sensor and other equipment. The system is programmable, easy to install, energy saving, consumption reduction and high dust reduction efficiency. It can automatically judge the pedestrian, driving and surrounding environment according to the roadway and environmental dust source, and automatically start and stop the dust remover to realize automatic dust reduction.