Micro-miniature efficient outlet flow field distortionless centrifugal fan

The invention discloses a micro-miniature efficient outlet flow field distortionless centrifugal fan. The micro-miniature efficient outlet flow field distortionless centrifugal fan comprises blades (1), a wheel disc (2), a volute (3), a motor (4), a volute distortion calibration extension segment (5), a flowing mixing segment (6) and arc flow guide plates (7); the blades (1) are evenly fixed to the circumference of the wheel disc (2) and are driven by the motor (4) to rotate, and exterior air is sucked into an impeller; and gas flows in the volute (3) under the effect of centrifugal force, passes through the volute distortion calibration extension segment (5), is properly mixed in the flowing mixing segment (6) and is guided by the arc flow guide plates (7) to flow out of the fan. The micro-miniature efficient outlet flow field distortionless centrifugal fan has the beneficial effects that unevenness of the speed of an outlet of the micro-miniature centrifugal fan is removed, the more efficient environment is provided for radiator work, on the premise of ensuring the flow and efficiency, the thickness of the fan is reduced, and the application site of an attaching body or close body is facilitated.