Waste anesthetic gas extraction device for anesthesiology department

The invention discloses an anesthetic waste gas extraction device for an anesthesiology department, and belongs to the field of anesthetic instruments. An anesthetic waste gas extraction device for an anesthesia department comprises a respirator, a lifting plate, a second gas inlet pipe, a first fixing plate, a second fixing plate, a lifting mechanism and two gas supply mechanisms, a breathing cavity is formed in the respirator, the lifting plate is arranged in the breathing cavity in a sliding mode, and the first gas inlet pipe is fixedly arranged at the center in the lifting plate; according to the scheme, the air pressure in the breathing cavity is changed by utilizing a lifting mode of the lifting plate, exhausted waste gas is filled by utilizing the change of the air pressure, and the breathing effect is improved. Meanwhile, the concentration of anesthetic gas in the breathing cavity close to the patient is detected, and the anesthetic condition of the patient is monitored in real time at a short distanc