The utility model relates to a device for churning up mortar, grout and concrete or similar building materials or solidified materials or for mixing mud or similar objects such as lime slurry, wherein, the materials are fed to a distribution device, then liquid is added for mixing and the material feeding keeps on, wherein, the firstly dried materials or optimally selected mixed materials are fed into the distribution device from a charge cask, and the device has a horizontal mixing chamber and a downward mixing chamber. The utility model is characterized in that a downward mixing chamber (16) is connected to an exit (15) of a basically horizontally arranged mixing chamber (10) with a horizontal mixing shaft (13), and the other mixing tool (17) revolves in the downward mixing chamber and is used for arranging a joint pipe (11) for conveying the liquid to the firstly dried materials or mixed materials on the horizontal mixing chamber (10) at front of the exit (15) of the horizontal mixing chamber by a certain space.