Disclosed is a dust collector using fan heat, comprising a bottom shell (10) and an upper cover (50), wherein a rear end (12) of the bottom shell (10) is provided with an air outlet (122) and a fan assembly (30), the upper cover (50) covers and is connected to the bottom shell (10), air flow from the fan assembly (30) is discharged via the air outlet (122), and the fan assembly (30) is provided with a fan (33) and a stator (331)； and the rear end (12) is provided with a lower frame edge (121), the fan assembly (30) and the air outlet (122) are enclosed to form a closed air flow channel (35), and a heat collector (40) is provided on the stator (331) in the air flow channel (35), and can rapidly collect heat and warm the air flow to form hot air flow. Also disclosed is a dust collector having an ironing function, which uses hot air flow to heat an ironing board (60) and then performs ironing and sterilization, so that the dust collector also implements recycling of energy resources while achieving the dust collection effect so as to perform effective sterilization and ironing.
