Crushing-type high-speed stirring device

The invention relates to a crushing-type high-speed stirring device comprising a crushing-type stirrer (1), a stirring shaft (2), a stirring kettle (3), a rack (4), a discharging outlet (5) and a feeding inlet (6). The crushing-type stirrer (1) is of a double-layer structure, an upper layer and a lower layer are fixedly connected through a plurality of vertical plates (13), an unified angle is kept between the azimuth of the face where each vertical plate is located and the circumference tangent face of the face and is greater than 0 degree and less than 90 degrees, an upper layer piece (11) is a disc with sawteeth (111) at the outer edge, the diameter of a middle circular hole of the upper layer piece (11) is greater than that of the stirring shaft (2), and a lower layer piece (12) is adisc with bent sawteeth (121) at the outer edge. According to the crushing-type high-speed stirring device, added large-diameter straw raw materials can be effectively crushed, the crushed raw materials and added biogas slurry