Public place emergency normalization two-leaf two-way synchronous opening and closing mute folding door

The invention discloses a public place emergency normalization two-leaf two-way synchronous opening and closing mute folding door, and relates to the technical field of folding doors. The public placeemergency normalization two-leaf two-way synchronous opening and closing mute folding door comprises a door frame, a small door leaf and a large door leaf. The small door leaf and the large door leafare connected through a two-way synchronous folding mechanism on a middle connecting column, a first door leaf chain assembly and a second door leaf chain assembly, and fastening screws are fixed through bearing pieces. The small door leaf is connected with the frame through a small door upper and lower shaft mounting and adjusting mechanism, the large door leaf and the small door leaf are connected with a frame body after being integrated, a 90-degree included angle can be formed among the large door leaf, the small door leaf and the frame body, the large door leaf and the small door leaf synchronously move reversely