Bladeless fan and pitching structure thereof

The invention discloses a bladeless fan and a pitching structure thereof. The pitching structure comprises a machine head, a main air guiding tube and a hollow ball hinge part, wherein the hollow ball hinge part is connected with the machine head and the main air guiding tube in a sealing manner; the hollow ball hinge part and the machine head are fixedly connected; the hollow ball hinge part comprises a rotating shaft perpendicular to the axial direction of the main air guiding tube, so that the machine head can rotate around the rotating shaft to complete the pitching action. Therefore, as the pitching structure is adopted, the machine head can pitch relative to the main air guiding tube when being connected with the main air guiding tube in a sealing manner.