Water surface scum removing device

The utility model discloses a water surface scum removing device which comprises a scum collecting device and a scum propelling device, the scum collecting device comprises a collecting tank installed on one side of a water pool and a lifting driving device used for driving the collecting tank to ascend and descend, and the scum propelling device is used for pushing scum on the water surface into the collecting tank. The scum collecting device further comprises a negative pressure pump; the negative pressure pump is communicated with the bottom of the collecting tank through a suction pipeline; the scum propelling device is a spraying device and comprises a water pump and a water outlet pipe communicated with the water pump, and the water outlet pipe is mounted on the pool wall in a rotating connection manner and is positioned on the opposite side of the collecting tank; the water outlet pipe is horizontally arranged and is provided with a plurality of nozzles; the scum propelling device further comprises a r