Hydroelectricity wastewater reuse system

The invention discloses a hydroelectricity wastewater reuse system, which comprises a drainage pump, an efficient clarifier, a demister flush tank, a demister flush water pump, a wet desulphurization absorption tower and a sludge pump; the drainage pump is connected with the inlet of the efficient clarifier; the water outlet on the upper part of the efficient clarifier is connected with the inlet of the demister flush tank; the sludge outlet at the bottom of the efficient clarifier is connected to a sludge pond at the lower part of the absorption tower by virtue of the sludge pump; the water outlet of the demister flush tank is connected to the opening of a shower pipe of a demister on the upper part of the absorption tower by virtue of the demister flush water pump. The hydroelectricity wastewater reuse system has the beneficial effects that the wastewater pollution is reduced, the water consumption is reduced; the adaptability and stability are high; the technological process is simple, and the investment and operation and maintenance costs are low.