showing the states in which cooled heated air is ejected in which fig5 is a view showing the state in which double heat exchange is enabled fig6 is a view showing the state in which single heat exchange is enabled and fig7 is a view showing the state in which single and double heat exchange are both enabled as shown in fig2 to 7 the air conditioner of an electric vehicle of various embodiments includes a blower unit 30 a peltier unit 10 a partition 40 and a guide case 20 the blower unit 30 is provided therein with a blower 31 such that it can forcibly blow intake air the peltier unit 10 is connected to the blower unit 30 to receive part of the air that is blown from the blower 31 and is provided with peltier devices 11 on the outer surface thereof the partition 40 divides the space inside the peltier unit 10 into a first space 10 a and a second space 10 b the guide case 20 contains the peltier unit 10 therein and dissipates part of the heat of the peltier unit 10 to the outside by introducing outside air the blower unit 30 includes the blower 31 which is disposed in the inner space thereof and an air inlet door 32 which is disposed in the upper portion thereof the air inlet door 32 serves to determine whether inside air or outside air will be the source of air to be blown a ventilation hole 33 which communicates with the peltier unit 10 is formed in the blower unit 30 the peltier unit 10 is configured as a hollow cubic structure and a plurality of peltier devices 11 is arranged on opposite side sections.