Air-blasting heat radiating fan structure

The utility model discloses an air-blasting type heat radiating fan which comprises a shell seat and a fan wheel, wherein the shell seat is provided with a containing chamber and a radial air outlet; the fan wheel is provided with a plurality of air-blasting fan blades and a flow guiding cover plate which is stuck and connected with the top edges of all the air-blasting fan blades; the center of the flow guiding cover plate is provided with an axial air inlet. When the fan wheel is assembled at the containing chamber, the flow guiding cover plate at least covers above the containing chamber of the shell seat in a contactless mode; when the fan wheel rotates, the air-blasting fan blades and the flow guiding cover plate synchronously rotate and respectively drive airflow and guide the airflow so as to change the airflow into a radial form to be output. Thereby, the utility model can relatively simplify the assembly, increase the air input, raise the air outlet pressure and reduce the air-blasting noise.