Energy-saving ventilation device for green building

The invention discloses an energy-saving ventilation device for a green building, and relates to the technical field of building ventilation. The air conditioner comprises a fan, an air outlet system communicating with the air outlet end of the fan, and an air inlet processing device, a switch device and an air inlet system which communicate with the air inlet end of the fan in sequence; the air inlet processing device comprises a plurality of air inlet processing units connected to the air outlet end of the switch device in parallel. Any air inlet processing unit comprises a box body and a plurality of processing modules which are linearly arranged in the box body and communicate with one another; the treatment module comprises a shell, two ends of the shell are respectively provided with a sealing structure A and a sealing groove A which are matched with each other, the inner walls of two ends of the shell are respectively provided with a perforated plate, and an area formed by the two perforated plates is