Multilayer precipitator

The utility model provides a multilayer precipitator capable of being widely used in the field of water treatment. The multilayer precipitator is structurally characterized in that a cylinder of the precipitator is divided into more than one precipitation layer and more than one concentration layer by a slurry collecting conical hopper, wherein the concentration layers are arranged at the lower part of the cylinder, and the precipitation layers are arranged at the upper part of the cylinder. Each precipitation layer is provided with inclined pipe sets to be taken as solid-liquid separating components, the inclined pipe sets are distributed in the cylinder by taking a center liquid reducing pipe as the center, a ring-shaped water outlet pipe groove is arranged above the inclined pipe sets, a water inlet branch opening is arranged in the center liquid reducing pipe, and the center liquid reducing pipe is arranged under the inclined pipe sets; and each precipitation layer is provided with a slurry scratching sti