Provided are a steam spraying apparatus and a clothing drying machine including the same. The steam spraying apparatus include a flow passage forming unit, a steam generating heater, and a nozzle. The flow passage forming unit has a flow passage for guiding water introduced through an inlet to an outlet. The steam generating heater applies heat to water flowing along the flow passage. A nozzle sprays steam generated by the heating of the steam generating heater at a certain pressure.