Window opener suitable for narrow channel and window applying same

The utility model discloses a window opener suitable for a narrow channel and a window applying the same. The window opener suitable for the narrow channel comprises a shell, and an arc-shaped movable groove is formed in the shell; the transmission mechanism is mounted in the shell; the driving device is mounted in the shell and is in transmission connection with the transmission mechanism; one end of the rocker is connected to the transmission mechanism, and the other end of the rocker is connected with the arc-shaped movable groove. A window includes a sash; the window opener is installed at one end of the window sash, and the window sash is connected with the end, extending out of the arc-shaped movable groove, of the rocker. In some narrow places where ventilation is needed, the window sash is driven by the window opener to be opened and closed along the arc-shaped movable groove of the window opener, the window opener is compact in overall structure and small in occupied space, and the requirements for i