Water vapor recovery cleaning device, dust collector and cleaning equipment

The utility model discloses a water vapor recovery cleaning device which comprises a machine body connected with a floor brush assembly and a sewage bucket arranged in the machine body, an air inlet pipeline is arranged in the sewage bucket, one side of the air inlet pipeline extends into the sewage bucket, and the other side of the air inlet pipeline is connected with a connecting pipe in the floor brush assembly through the bottom of the machine body. A drainage channel is arranged at the bottom of the machine body, the drainage channel is connected with a water storage tank arranged on the connecting pipe, a leakage hole is formed in the bottom of the water storage tank, and the leakage hole is connected with an air suction channel arranged on the connecting pipe. The air suction device is novel in design, reasonable in structure and convenient to use, water flowing into the bottom of the machine can be sucked into the air suction channel again and is prevented from flowing to the ground and polluting the