Greening device for on-site treatment and recycling of rainwater and domestic sewage

The invention relates to a greening device for on-site treatment and reuse of rainwater and domestic sewage. The greening device comprises a water storage barrel, a water distribution system, a power supply system, a greening wall and a water sterilizer, a water inlet is formed in the top of the water storage barrel, a filter screen is arranged in the water storage barrel, the water storage barrel is divided into a sewage storage chamber and a water storage chamber through the filter screen, the sewage storage chamber is connected with a sewage discharging pipe, and the water storage chamber is connected with a water discharging pipe which is provided with a control valve. The water distribution system comprises a liquid level instrument, an automatic control device, a water pump and a water distribution pipeline, the automatic control device is used for controlling operation of the liquid level instrument and the water pump, the drainage pipe is connected with the automatic control device, and an inlet of th