A hair dryer, comprising: a housing provided with an air intake and an air outlet, and wherein the air intake and the air outlet are communicated via an air passage; a fan installed in the air passage for discharging air from the air intake to the air outlet; and a water particle generator installed in the housing for providing water particles in a direction towards the air outlet; and wherein an installing cavity for installing the water particle generator is provided in the housing, the installing cavity has a cold air passage connected to the air intake and a particle outlet for releasing the water particles, and cold air flowing through the cold air passage that carries the water particles generated by the water particle generator is blown out of the particle outlet; wherein the water particle generator comprises: a condensing rod, a refrigeration unit, a discharge electrode group and a high voltage power supply, the high voltage power supply applies a high voltage to the discharge electrode group to make the discharge electrode group to generate a high voltage corona, and the discharge electrode group applies the high voltage corona to the condensing rod so as to form atomized water particles by the condensed water attached to the condensing rod under an excitation of the high voltage corona; wherein the water particle generator further comprises an insulated bracket, and the discharge electrode group and the refrigeration unit are installed on both sides of the insulated bracket; characterized in that the discharge electrode group comprises a first electrode and a second electrode, wherein the first electrode and the second electrode cooperate with each other, and are located on both sides of the condensing rod; wherein the first electrode and the second electrode respectively comprise a connecting locking piece and a discharge tip, and an insulated partition is further provided on the insulated bracket for insulating connecting locking pieces of the first electrode and the second electrode. a housing provided with an air intake and an air outlet, and wherein the air intake and the air outlet are communicated via an air passage; a fan installed in the air passage for discharging air from the air intake to the air outlet; and a water particle generator installed in the housing for providing water particles in a direction towards the air outlet; and wherein an installing cavity for installing the water particle generator is provided in the housing, the installing cavity has a cold air passage connected to the air intake and a particle outlet for releasing the water particles, and cold air flowing through the cold air passage that carries the water particles generated by the water particle generator is blown out of the particle outlet; wherein the water particle generator comprises: a condensing rod, a refrigeration unit, a discharge electrode group and a high voltage power supply, the high voltage power supply applies a high voltage to the discharge electrode group to make the discharge electrode group to generate a high voltage corona, and the discharge electrode group applies the high voltage corona to the condensing rod so as to form atomized water particles by the condensed water attached to the condensing rod under an excitation of the high voltage corona; wherein the water particle generator further comprises an insulated bracket, and the discharge electrode group and the refrigeration unit are installed on both sides of the insulated bracket;