The utility model relates to a dissolving kettle, aiming at providing a dissolving kettle which has good alkali resistance, a good heat conduction effect and stirring heat reduction. The dissolving kettle comprises a pipe clamping barrel, a stirrer, a stirring shaft and a barrel. The dissolving kettle is characterized in that the pipe clamping barrel is internally provided with a coil pipe; a pushed paddle type stirrer is used; the pipe clamping barrel is made of a stainless steel material; and the barrel is made of a stainless steel material.