Household sewage purifier

The utility model discloses a household sewage purifier and relates to the technical field of water purification. Household sewage purifier, the device comprises a shell, a drainage pipe is arranged at the top of the shell in a penetrating mode, a movable water plug is arranged at the top end of the drainage pipe, a hand washing sink is fixedly connected to the top end of the drainage pipe, and afirst filter screen layer, a second filter screen layer and a third filter screen layer are sequentially arranged in an inner cavity of the shell and located at the bottom of the drainage pipe from top to bottom. Household sewage purifier, a first filter screen layer, an activated carbon filter layer, a second filter screen layer, a third filter screen layer, a fermentation chamber and other components are matched for use; the sewage purifier is simple in structure, high in practicability, capable of purifying sewage layer by layer, good in purification effect, capable of recycling the sewage,environmentally friendly,