Adjustable axial flow fan

The utility model relates to the technical field of axial flow fans, and discloses an adjustable axial flow fan which comprises a bottom plate, a bearing plate is arranged at the top of the bottom plate, a fan body is arranged at the top of the bearing plate, a round rod is rotationally connected to the top of the bearing plate, an adjusting mechanism is arranged at the top of the bottom plate, and a steering assembly is arranged outside the round rod. The adjusting mechanism comprises a mounting seat, the mounting seat is arranged outside the fan body, and the bottom of the mounting seat is fixedly connected with the top of the round rod. Through the design of the adjusting mechanism, while the height can be adjusted, a first push-pull rod can be promoted to push and pull one end of the bottom of the fan main body by controlling a threaded adjusting rod to rotate, so that the fan main body is promoted to rotate by taking a rotating shaft as a center, and the exhaust elevation angle of the fan main body is ad