Waste gas recovery and purification device for clean space

The utility model relates to the technical field of waste gas purification, in particular to a waste gas recovery and purification device for a clean space, which comprises a transmission mechanism and a purification mechanism, and the transmission mechanism comprises a transmission servo motor, a vacuum pump mounted at one end of the servo motor, connecting and leading ends movably mounted on two end pipes at the top of the vacuum pump, and buckles movably mounted on the two connecting and leading ends. Two connecting and leading ends are connected to two end pipes at the top of a vacuum pump, an exhaust pipe and an air inlet pipe which are used for exhaust and air inlet are installed on the two connecting and leading ends respectively, and the other end of the air inlet pipe is connected with a water storage tank capable of washing harmful gas in a filter chamber. And an absorbing assembly capable of continuously absorbing harmful gas is mounted on the other side of the top of the water storage tank, and th