Floor cleaner

The utility model discloses a floor cleaner which comprises a floor brush shell and a cleaning rolling brush, the cleaning rolling brush is arranged at the front end of the floor brush shell, the floor brush shell comprises a sewage tank and a sewage extrusion part which are arranged above the cleaning rolling brush, the sewage tank is provided with a water inlet hole facing the cleaning rolling brush, and the sewage extrusion part and the water inlet hole are arranged front and back. The sewage extrusion part is located in front of the advancing direction of the ground cleaner, the water inlet hole is located behind the advancing direction of the ground cleaner, the sewage extrusion part is in interference fit with the cleaning rolling brush, when the cleaning rolling brush rotates, liquid on the cleaning rolling brush is extruded by the sewage extrusion part and enters the sewage tank through the water inlet hole, and the sewage extrusion part and the sewage tank are formed separately. According to the util