High-rise building window overflow fire to-be-rescued biological protection window

The invention discloses a high-rise building window overflow fire to-be-rescued protection window which comprises a protection window body fixed outside a window, and a fire avoiding space is distributed at the right end of the protection window body; the supporting bottom plate is fixed to the bottom of the fire-avoiding space, and a stopping piece is installed on the left side; the adjusting side plate is detachably mounted on the right side of the fire-avoiding space, and the inner side surface is connected with the wall body at the window through a bolt; the inner baffle is fixed to the side, close to the window, of the fire avoiding space. The first escape ladder is hinged to the bottom of the right side of the fire-avoiding space; the second escape ladder is hinged to the top end of the outer side of the first escape ladder and is connected with the first escape ladder through a positioning pin. According to the fire-avoiding space provided by the invention, sufficient time and space can be reserved for