Drinking water reservoir water quality guaranteeing device

The utility model provides a drinking water reservoir water quality guaranteeing device which comprises a plurality of filtering units arranged one by one, each filtering unit comprises a floating device, a filtering curtain and a fixing seat which are arranged from top to bottom, a first connecting piece is arranged on each fixing seat, and each floating device is connected with the correspondingfirst connecting piece through a steel wire rope. Positioning rods are arranged at the left end and the right end of the floating device, the floating device sleeves the positioning rods through first circular rings, the upper end of the filtering curtain is fixed to the floating device, and the lower end of the filtering curtain is fixed to the fixing base. According to the device, silt in a water body can be filtered, oil dirt floating on the water surface is adsorbed to the floating device, then the oil dirt is transferred to the outside of a protection area through the oil absorber for treatment, and the clarity