The
moisture absorption
barrel comprises a grid frame, the grid frame comprises a
barrel-shaped placing space and a through hole, a
moisture absorption body is fixed in the
barrel-shaped placing space, the surface of the
moisture absorption body is coated with a layer of breathable film, a containing cavity is formed in the breathable film, and the
moisture absorption body is arranged in the containing cavity. The containing cavity is filled with
moisture absorption dissolving particles, a plurality of
water seepage holes are formed in the lower edge of the
moisture absorption body, a
water collection groove is formed in the inner bottom wall of the grid frame, the
water collection groove is correspondingly formed under the
water seepage holes and used for collecting water drops flowing down from the
water seepage holes, and a plurality of water drainage holes are formed in the
water collection groove. The moisture absorption body is positioned and fixed through the grid frame, the influence of deformation of the moisture absorption body on the water seepage holes is reduced, the watering holes are prevented from being blocked, and the moisture
absorption efficiency of the moisture absorption cylinder is improved.