The invention discloses an environmental protection device for centralized treatment of household garbage. The environmental protection device comprises a rectangular base, wherein a No.1 rectangular groove is formed in the upper surface of the rectangular base; a vertical rectangular box body is embedded into the No.1 rectangular groove; a lifting and stirring mechanism is arranged in the vertical rectangular box body; a combustion mechanism is arranged at the lower end of the interior of the vertical rectangular box body; an exhaust mechanism is arranged on the upper end side surface of the vertical rectangular box body; fire extinguishing mechanisms are arranged on the rectangular base and at two sides of the No.1 rectangular groove; a sealing mechanism is arranged on the upper surface of the vertical rectangular box body; and a controller is arranged on one side surface of the rectangular base. The environmental protection device has the beneficial effects of simple structure and high practicability.