Ultrasonic algae removing device capable of rotating in all directions

The utility model relates to an algae removing device, and discloses an ultrasonic algae removing device capable of rotating in all directions, which comprises a machine base (1) and a machine cover (2) connected with the machine base (1), wherein a motor (3) is mounted in the machine base (1); the machine base (1) is connected with one end of a rotating shaft (5); an ultrasonic generator (6) is arranged at the other end of the rotating shaft (5), and comprises an ultrasonic head (11); the ultrasonic head (11) is connected onto a fixed shaft (14) through a two-section claw (12). According to the device, a rotating device and the ultrasonic head of which the emission angle can be adjusted are arranged, so that the ultrasonic radiation range is enlarged, and the efficiency of algae removing is improved; moreover, the device is compact in structure, and convenient to operate.