A spot cooling device which separates injected compressed air into hot air and cold air to discharge the hot air and eject the cold air to a space or subject includes: a main body including: an injection port through which compressed air is injected; a cold air nozzle through which cold air separated from the injected compressed air is ejected; and a passage part connected to the cold air nozzle and the injection port; and a temperature control unit installed through the passage part so as to control an opening degree of the passage part according to temperature change.