Sewage treatment device for copper smelting production

The utility model discloses a sewage treatment device for copper smelting production, which comprises a three-stage precipitation tank communicated with a sewage pipe and a filter precipitation tank, the filter precipitation tank comprises an outer tank body and an inner tank body, a filter pipe communicated with the three-stage precipitation tank is arranged on the side wall of the upper part of the inner tank body, and a water distributor communicated with the filter pipe is arranged at the top in the inner tank body. Water distribution holes are uniformly distributed in the bottom of the water distributor, membrane filter pipes communicated with the water distribution holes one by one are arranged at the bottom of the water distributor, a mounting plate and a waste powder collecting conical hopper are arranged at the lower part of the inner tank body, a water outlet hole communicated with the interior of the outer tank body is formed in the bottom of the inner tank body, and a drain pipe extending out of t