The utility model discloses a stirring cylinder for an asphalt mixture cold recycling mixing plant. The stirring cylinder comprises a cylinder body as well as a feed inlet and a discharge outlet which are arranged on the cylinder body, wherein, two rotatable stirring shafts are also arranged in the cylinder body and are respectively provided with at least three stirring blade devices, the stirring blade devices comprise stirring blades and tool shanks, the feed inlet is arranged above one axial end of a stirring shaft of the cylinder body, the discharge outlet is arranged below the other axial end of the stirring shaft of the cylinder body, and the planes of the stirring blades have an included angle alpha with the axial line of the stirring shaft. Compared with the prior art, the feed inlet and the discharge outlet of the cylinder body are arranged at both axial ends of the stirring shaft of the cylinder body, the stirring blades are inclined to the axial direction of the stirring shaft and have the included angle with the stirring shaft, stirred materials enter from the feed inlet and then are mixedly output to the other end from one end of the stirring shaft under the stirring of the inclined stirring blades, and the mixing of the stirred materials is finished during the mixing at the same time, thereby realizing continuous stock feeding.