The present invention relates to a sunflower hot air fan, and more particularly, to an apparatus for improving a sunflower hot air fan which uses a flame of a burner to heat a heat sink and blowing air through a circumferential edge of the heat sink, A combustion cone 100 formed of a conical plate material and having an inlet of a small diameter and an outlet of a large diameter; A burner 200 assembled at an inlet of the combustion cone 100 and generating a flame into the combustion cone 100 by receiving fuel and power; A heat sink 300 formed of a circular plate having a plurality of holes 310 and formed with a plurality of air outlets 320 radially along the circumferential edge thereof and assembled to the outlet of the combustion cone 100; A housing 400 accommodating the combustion cone 100 with a predetermined gap therebetween and forming an insulating air space 410 between an inner surface of the combustion cone 100 and an outer surface of the combustion cone 100; A blowing fan (500) for sucking outside air and blowing air into the heat insulating air blowing space (410) of the housing (400); And a conical heat insulating partition 600 radially dividing the heat insulating air blowing space 410. The hot air is heated to a certain distance to increase the heating efficiency while maintaining the temperature of the surface of the device without the heat insulating material harmful to the human body such as gypsum So that it is easy to manufacture and prevent the occurrence of safety accidents, thereby maximizing the merchantability and safety of the product.
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