A retractable multi-function irrigation outcomer includes fixed seat (4), shell (11), inner rod (10), earth drill (2), soil scraper (3), upper cover (6) upper cover (6) is connected to the outer wall of upper end of shell (11), and fixed seat (4) is fitted inside inner wall of upper end of shell (11) soil scraper (3) is flange type with flange plate installed between upper cover (6) and upper end face of fixed seat (4), and soil scraper (3) is closely fitted to outer wall of inner rod (10) inner rod (10) is cone-shaped in axial direction, and diameter of the end far from soil scraper (3) is larger than that of the other end close to soil scraper (3). With the structure, the condition where soil is accumulated around inner rod can be avoided, thus ensuring the normal stretch of inner rod and normal serviceable performance of irrigation outcomer.
