Solar-heated efficient anaerobic reaction wastewater treatment device

The utility model discloses an efficient anaerobic reaction wastewater treatment device heated by solar energy. The device comprises an anaerobic reactor, a reaction bed, a three-phase separator, an exhaust pipeline and a safety bottle, the anaerobic reactor is connected with a wastewater source through a water inlet pipeline and a first peristaltic pump; a water outlet and a return pipeline are arranged at the top of the anaerobic reactor; a second peristaltic pump and a temperature control device are arranged on the return pipeline; the reaction bed is a polystyrene foam plate; the temperature control device comprises a heat exchanger arranged on the return pipeline and a water bath heater for providing a water bath for the heat exchanger, an electric heating wire is embedded in the outer wall of the water bath heater, the electric heating wire is connected with a storage battery and a temperature controller in series, the storage battery is powered by a solar power generation device, and a temperature sens