PURPOSE: A hot wind blower is provided to increase the blowing efficiency of a blower fan and the rotation force for unit motor driving power. CONSTITUTION: A hot wind blower includes an air guide duct(20) having a height direction guide duct part(20a) and a depth direction guide duct part(28), and a blower fan(30). The height direction guide duct part is formed in the entire height section of a casing(10) and a blower fan mounting space in the arc-sectional shape at a lower part. Blower blades(34) of the blower fan are disposed in the shape of circle in parallel to a front surface of the casing. Air blown by the blower blades is guided to a heating plate(41).
