A vortex blower is composed of a motor providing a rotating power and including
a pivot, a first rear housing mounted in proximity of the pivot and including two
through holes at a lower side thereof for communicating respectively with an entrance
airway and an exit airway, an impeller mounted inside the first rear housing and
on the pivot and rotating along with the shaft, a second rear housing including
a through hole at the center thereof and covers on the first rear housing to enable
the pivot to run through the through hole and to enable the impeller to be encased
inside the first and second rear housings, and a heat-dissipating device mounted
outside the second rear housing and is driven by the pivot to work and to generate
rapid flowing air outside the first and second rear housings.
