Cinema evacuation folding seat linked with fire protection

The invention discloses a cinema evacuation folding seat linked with fire protection. The cinema evacuation folding seat comprises a seat support, a seat plate, armrests, a fixed chair back, a foldable chair back and a foldable headrest. The seat plate is arranged on the seat support, the armrests are arranged at the upper end of the seat support, the foldable chair back is connected to the seat plate through the fixed chair back, and the foldable chair back and the armrests are located on a same plane when the foldable chair back is folded forwards by 90 degrees; the foldable headrest is arranged at the upper end of the foldable chair back and can be folded forwards by 90 degrees, and the upper end face of the foldable headrest can be supported on the seat plate. When people are evacuated, people can directly step on the chair back, climb over the chair to escape as long as people go downstairs, most space which cannot be utilized at present is fully utilized, evacuation pressure at awalkway is relieved, eva