Energy-saving ventilation system for green building

The invention discloses an energy-saving ventilation system for a green building, which comprises a house body, an air inlet fan and an exhaust fan arranged on the house body, an energy supply module arranged on the top of the house body and used for providing electric energy for the air inlet fan and the exhaust fan, and a protection module arranged on the top of the house body and used for protecting the air inlet fan and the exhaust fan. The protection module is arranged on the energy supply module, and when the energy supply module is not used, the protection module is used for shielding and protecting the energy supply module. Through cooperation of the above structures, the solar panel can be shielded and protected when not in use, the surface of the solar panel can be wiped before the solar panel is used, the lighting efficiency of the solar panel is improved, external air can be uniformly blown away into the house when the house body is ventilated, and the house body is ventilated. And the air outlet