The invention discloses a self-cleaning manure removing device for a hencoop. The self-cleaning manure removing device for the hencoop comprises a fermentation cabinet, wherein the hencoop is mounted above the fermentation cabinet; the bottom of the hencoop is provided with a through-hole bottom plate; the right side of the fermentation cabinet is provided with a fermentation agent storage box; a display screen and a control panel are inlaid in an outer wall of the fermenting agent storage box; further, the display screen is mounted above the control panel; the frontal surface of the fermentation cabinet is provided with an observation window; a fermentation chamber is arranged inside the fermentation cabinet; the inner wall of the top of the fermentation chamber is provided with an automatic telescopic plate; a rotary disk is connected with a motor through a rotating shaft; further, the rotary disk is connected with a screw rod through a connecting shaft; the screw rod is mounted on the right side of the connecting shaft; the right side of an adapting container is provided with an air extraction pump. The self-cleaning manure removing device for the hencoop is provided with the fermentation cabinet; chicken manure can be subjected to retreatment, and is changed into available fertilizer; the principle of resource utilization is reflected; the demands of people are met.