An air cleaner that is installable on a desk, the air cleaner comprising: a blower housing having a blowing fan installed therein; a filter provided at an inlet of the blowing fan, the filter detachably mounted inside the blower housing; a discharge portion provided at an outlet of the blowing fan; and a thermoelectric module provided at a side of the blower housing, wherein the thermoelectric module includes: a module body having first and second suction covers (371, 375) through which air is suctioned; a thermoelectric element having a heat absorption portion and heat dissipation portion; a first heat sink disposed to be in communication with a first side of the thermoelectric element and in which air suctioned through the first suction cover passes; a second heat sink disposed to be in communication with a second side of the thermoelectric element and in which air suctioned through the second suction cover passes; and a dissipation fan to generate airflow through the second suction cover, characterized in that: the thermoelectric module is disposed under the blower housing, a module coupling portion to which the thermoelectric module is coupled and a blowing suction port to suction air are formed at a bottom surface of the blower housing, the blowing suction port is formed at portions other than the module coupling portion, when the blowing fan is driven, the external air that flows into the thermoelectric module through the first suction cover passes through the first heat sink and passes through the filter through the module coupling portion, and the external air that flows into the blower housing through the blowing suction port passes through the filter, and when the dissipation fan is driven, the external air flows into the thermoelectric module through the second suction cover and passes through the second heat sink. a blower housing having a blowing fan installed therein; a filter provided at an inlet of the blowing fan, the filter detachably mounted inside the blower housing; a discharge portion provided at an outlet of the blowing fan; and a thermoelectric module provided at a side of the blower housing, wherein the thermoelectric module includes: a module body having first and second suction covers (371, 375) through which air is suctioned; a thermoelectric element having a heat absorption portion and heat dissipation portion; a first heat sink disposed to be in communication with a first side of the thermoelectric element and in which air suctioned through the first suction cover passes; a second heat sink disposed to be in communication with a second side of the thermoelectric element and in which air suctioned through the second suction cover passes; and a dissipation fan to generate airflow through the second suction cover, a module body having first and second suction covers (371, 375) through which air is suctioned; a thermoelectric element having a heat absorption portion and heat dissipation portion; a first heat sink disposed to be in communication with a first side of the thermoelectric element and in which air suctioned through the first suction cover passes; a second heat sink disposed to be in communication with a second side of the thermoelectric element and in which air suctioned through the second suction cover passes; and a dissipation fan to generate airflow through the second suction cover, characterized in that: the thermoelectric module is disposed under the blower housing, a module coupling portion to which the thermoelectric module is coupled and a blowing suction port to suction air are formed at a bottom surface of the blower housing, the blowing suction port is formed at portions other than the module coupling portion, when the blowing fan is driven, the external air that flows into the thermoelectric module through the first suction cover passes through the first heat sink and passes through the filter through the module coupling portion, and the external air that flows into the blower housing through the blowing suction port passes through the filter, and when the dissipation fan is driven, the external air flows into the thermoelectric module through the second suction cover and passes through the second heat sink. the thermoelectric module is disposed under the blower housing, a module coupling portion to which the thermoelectric module is coupled and a blowing suction port to suction air are formed at a bottom surface of the blower housing, the blowing suction port is formed at portions other than the module coupling portion, when the blowing fan is driven, the external air that flows into the thermoelectric module through the first suction cover passes through the first heat sink and passes through the filter through the module coupling portion, and the external air that flows into the blower housing through the blowing suction port passes through the filter, and when the dissipation fan is driven, the external air flows into the thermoelectric module through the second suction cover and passes through the second heat sink.