Fly ash leachate sludge treatment system

The invention discloses a fly ash leachate sludge treatment system, which comprises a leachate regulating tank, a sludge treatment tank, a sludge treatment tank and a sludge treatment tank, an acid agent is added into the reduction tank, and first treatment liquid is obtained; the oxidation neutralization tank is communicated with the reduction tank and is used for receiving the first treatment liquid and an alkaline agent to obtain second treatment liquid; the flocculation tank is communicated with the oxidation neutralization tank and is used for receiving the second treatment liquid, a flocculating agent and a coagulant aid to obtain sludge colloid; the multi-stage sedimentation device comprises a primary reaction sedimentation tank, a deep sedimentation tank and a heavy metal muddy water layering tank which are connected in sequence, the primary sedimentation tank is communicated with the flocculation tank, the primary sedimentation tank and the deep sedimentation tank are flatly arranged, and the heavy m