Cleaning device and cleaning system

The utility model discloses cleaning equipment and a cleaning system. The cleaning equipment comprises a sewage tank, a sewage suction pipe and a sewage discharge pipe, the sewage tank is used for collecting sewage, the sewage suction pipe is connected with the sewage tank and used for guiding the sewage to flow into the sewage tank, the sewage discharge pipe is connected with the sewage tank and the sewage suction pipe, and the sewage discharge pipe is used for guiding the sewage to be discharged from the sewage tank to the sewage suction pipe. Therefore, sewage is discharged out of the cleaning equipment from the sewage suction pipe. According to the cleaning equipment, the sewage discharge pipe is connected with the sewage suction pipe, sewage can flow into the sewage tank through the sewage suction pipe and can also flow out of the sewage tank through the sewage discharge pipe and the sewage suction pipe, and the sewage suction pipe and the sewage discharge pipe are combined, so that the cleaning equipment is simple in structure, and the production cost is reduced.