Fly-cutter mixing machine

The utility model discloses a fly-cutter mixing machine. The fly-cutter mixing machine comprises speed reducers, fly cutters, fly cutter groups, a barrel, middle shafts and a discharge opening, wherein the middle shafts are arranged in the barrel, and are connected with the speed reducers as well as the fly cutters and the fly cutter groups; the discharge opening is formed in one side of the barrel; the fly cutters are in a triangle form; each fly cutter group comprises two fly cutters, which are symmetrically arranged; one fly cutter and 10 fly cuter groups are arranged on one middle shaft; and the rotating speed of each fly cutter reaches 2800r/min. The fly-cutter mixing machine is convenient to use and simple and convenient to operate, and is capable of mixing materials evenly easily, and thus the building materials are relatively good in quality.