The invention relates to the technical field of air feeding and exhausting windows and provides a window having air feeding and exhausting functions and provided with an openable sash. The window comprises a window body, the openable sash, air exhausting partition boards and fresh air partition boards, wherein the openable sash capable of rotating around a shaft and being opened outwards is mounted on the window body, and the two air exhausting partition boards which can form an air exhausting channel with the openable sash are arranged in the middle of the inner side of the openable sash. The window is reasonable and compact in structure and convenient to use; the air exhausting channel and a fresh air feeding channel of the window are separated by the air exhausting partition boards on the two sides, so that air feeding and air exhausting of an air conditioning unit are not affected mutually, sufficient fresh air feeding space is guaranteed, the air exhausting channel and the fresh air feeding channel are not prone to a short circuit, a building structure is not required to be damaged, indoor area is not occupied, and the requirements for small size and compact structure of a miniature air conditioning device are met.