Low-temperature adsorption system with adsorbent cooling function

The invention discloses a low-temperature adsorption system with an adsorbent cooling function, the low-temperature adsorption system comprises a tower drum, an adsorption bed and a heat exchange module, the adsorption bed is located in the tower drum and is formed by stacking adsorbents fed from a feeding port, low-temperature flue gas input into the tower drum is adsorbed and purified into low-temperature purified flue gas by the adsorption bed, the heat exchange module is located outside the tower drum, and the heat exchange module is located in the tower drum. A cold side inlet of the heat exchange module is communicated with the flue gas outlet, the low-temperature purified flue gas enters the cold side of the heat exchange module to exchange heat with substances on the hot side of the heat exchange module so as to recover cold energy in the low-temperature purified flue gas, and the cold energy is used for cooling the adsorbent before being fed into the tower barrel through the feeding port. According t