Disclosed is a circumferentially revolving water outlet device, which comprises a main body (1), an upper cover (2), a lower cover (3), a water outlet assembly (4), and a revolving swing (5). The upper cover (2) and the lower cover (3) respectively cover an upper end face and a lower end face of the main body (1), such that a water inlet cavity is formed therein. The water inlet cavity therein is provided with an impeller (6), a speed reduction duplex gear (7) and an output gear (8), wherein the central part of the output gear (8) is provided with a first rotating shaft (81) which rotates synchronously therewith, the first rotating shaft (81) extending through the water inlet cavity out of the lower cover (3) and being fixedly connected to one end of the revolving swing (5) and the other end of the revolving swing (5) being rotationally connected to an upper end face of the water outlet seat (41), and the revolving swing (5) drives the water outlet assembly (4) to rotate under the driving of the output gear (8). The water outlet device has a simple structure, is convenient to use, and can bring a relaxing and smooth showering experience to a user.