Building carbon emission adsorption device

The utility model provides a building carbon emission adsorption device which comprises an adsorption box and a fixing mechanism, the fixing mechanism is arranged on one side of the inner surface of the adsorption box, a pretreatment mechanism is arranged on one side of the inner surface of the adsorption box, and one end of an air outlet pipe is connected with a fan in a sealed mode. According to the building carbon emission adsorption device, through the arrangement of the fixing mechanism, when a placement box needs to be placed in an adsorption box to be fixed, a pull ring is pulled firstly, the pull ring drives a limiting block to move towards the interior of a movable groove through a steel cable, meanwhile, a reset spring is subjected to compression deformation, and when the limiting block is completely embedded in the movable groove, the limiting block is fixed; a placing box paved with activated carbon is embedded in the adsorption box, then acting force applied to a pull ring is released, at the mom