Carbon dioxide absorber

The invention relates to the technical field of carbon dioxide absorption equipment, and particularly discloses a carbon dioxide absorber. The carbon dioxide absorber comprises a shell, and a gas inlet pipeline, a gas outlet pipeline and an absorbent sieve plate which are mounted in the shell, wherein the shell is hollow, and a gas inlet and a gas outlet which communicate with the outside are formed in the upper end of the shell; the absorbent sieve plate is horizontally installed in the shell and divides the interior of the shell into an absorption area and a dust collection area; the upper end of the gas inlet pipeline hermetically communicates with the gas inlet, the lower end of the gas inlet pipeline is provided with a gas outlet hole, and the gas inlet communicates with the absorption area through the gas outlet hole; and the upper end of the gas outlet pipeline is connected with the gas outlet, a gas inlet hole is formed in the gas outlet pipeline close to the gas outlet, and the gas outlet communicate