Fixed car window with emergency ventilation window for bullet train and use method of fixed car window

The invention relates to a fixed train window with an emergency ventilation window for a bullet train and a using method, and belongs to the technical field of equipment for intercity trains. According to the technical scheme, a first fixed window frame (2) is connected with a second fixed window frame (3), and hollow laminated tempered glass (5) is installed on the first fixed window frame (2) and the second fixed window frame (3) through foam rubber strips (6) and composite glass rubber strips (10); a circular ventilation mounting opening (12) is formed in the hollow laminated tempered glass (5), and a ventilation window (13) is mounted at the ventilation mounting opening; the connecting rod mechanism (29) is connected with the ventilation window outer frame (15) and the circular movable window frame (18), and the ventilation window (13) can be opened and closed through the connecting rod mechanism. The invention belongs to a suspension type B product, is mounted on the side wall of a vehicle body, not only