Excess-sludge-free bleaching and dyeing wastewater treatment device

The utility model relates to the technical field of water treatment, and discloses a bleaching and dyeing wastewater treatment device without excess sludge, which comprises a filtering and regulating tank, an anaerobic tank and an aerobic tank, the filtering and regulating tank is communicated with the bottom of the anaerobic tank, and the anaerobic tank is communicated with the top of the aerobic tank. The anaerobic tank is sequentially provided with a first filter adsorption layer, a first biological filler layer and a first filter material layer from bottom to top, the aerobic tank is sequentially provided with a covering layer, a second filter material layer, a second biological filler layer and a second filter adsorption layer from top to bottom, a vent pipe communicated with the external environment is arranged in the second filter adsorption layer, and plants are planted on the covering layer. The wastewater is subjected to six-stage filtration and decomposition, pollutants in the wastewater can be gre