The present invention relates to a portable atomizer. The portable atomizer includes a casing, a liquid storage case, an atomizing device and a power supply. The atomizing device further includes a liquid guiding assembly which includes a second suction nozzle and a liquid guiding rope； one end of the second suction nozzle is inserted into the storage cavity of the liquid storage case； the other end of the second suction nozzle intercommunicates with the atomizing cavity of the suction nozzle holder； a part of the liquid guiding rope is surrounded by the heater, and two ends of the liquid guiding rope are guided into the second suction nozzle. The present invention enables to guide the stored medicinal liquid uniformly onto the heater, providing an easy access to fresh medicinal liquid for a user.
