A carbon dioxide capture apparatus having a temperature swing adsorption mode for selective separation of carbon dioxide from flue gases which contain carbon dioxides, comprising: a carbon dioxide adsorption column including a carbon dioxide adsorption unit in which adsorption of carbon dioxide from flue gases occurs; a carbon dioxide desorption column connected to the carbon dioxide adsorption column and including a carbon dioxide desorption unit in which desorption of the adsorbed carbon dioxide occurs; a carbon dioxide adsorbent repeatedly adsorbing and desorbing carbon dioxide while circulating through the carbon dioxide adsorption column and the carbon dioxide desorption column; and a heat exchange unit, in which heat exchange occurs between the adsorbent after carbon dioxide adsorption and the adsorbent after carbon dioxide desorption, characterized in that the carbon dioxide adsorption column and the heat exchange unit both comprise an inner tube, wherein the inner tube of the carbon dioxide adsorption column is a prolongation vertically upwards of the inner tube of the heat exchange unit, and the adsorbent after exiting the carbon dioxide desorption column passes the inner tube of the heat exchange unit before it travels upwardly through the inner tube of the carbon dioxide adsorption column, and the adsorbent after exiting the carbon dioxide adsorption column passes through an outer tube of the heat exchange unit wherein the adsorbent after carbon dioxide adsorption and the adsorbent after carbon dioxide desorption are moved under bubbling fluidized bed conditions and dilute fluidized bed conditions in the heat exchange unit, respectively, wherein the adsorbent escaping from the carbon dioxide adsorption column after carbon dioxide adsorption and the adsorbent escaping from the carbon dioxide desorption column after carbon dioxide desorption exchange sensible heat while flowing in counter-current directions through the heat exchange unit). a carbon dioxide adsorption column including a carbon dioxide adsorption unit in which adsorption of carbon dioxide from flue gases occurs; a carbon dioxide desorption column connected to the carbon dioxide adsorption column and including a carbon dioxide desorption unit in which desorption of the adsorbed carbon dioxide occurs; a carbon dioxide adsorbent repeatedly adsorbing and desorbing carbon dioxide while circulating through the carbon dioxide adsorption column and the carbon dioxide desorption column; and a heat exchange unit, in which heat exchange occurs between the adsorbent after carbon dioxide adsorption and the adsorbent after carbon dioxide desorption, characterized in that the carbon dioxide adsorption column and the heat exchange unit both comprise an inner tube, wherein the inner tube of the carbon dioxide adsorption column is a prolongation vertically upwards of the inner tube of the heat exchange unit, and the adsorbent after exiting the carbon dioxide desorption column passes the inner tube of the heat exchange unit before it travels upwardly through the inner tube of the carbon dioxide adsorption column, and the adsorbent after exiting the carbon dioxide adsorption column passes through an outer tube of the heat exchange unit wherein the adsorbent after carbon dioxide adsorption and the adsorbent after carbon dioxide desorption are moved under bubbling fluidized bed conditions and dilute fluidized bed conditions in the heat exchange unit, respectively, wherein the adsorbent escaping from the carbon dioxide adsorption column after carbon dioxide adsorption and the adsorbent escaping from the carbon dioxide desorption column after carbon dioxide desorption exchange sensible heat while flowing in counter-current directions through the heat exchange unit).