Concrete crushing separator convenient for dust prevention

The concrete crushing separator comprises a conveying barrel, a first motor, an electric wire, a second motor and a third motor, a spiral conveying rod is rotatably connected into the conveying barrel, the lower end of the conveying barrel penetrates through the interior of an infiltration box, a machining box is integrally connected to the right end of the conveying barrel in a welded mode, and the machining box is connected with the upper end of the infiltration box. A box door is hinged to the front lower end of the machining box, a sliding block is connected to a sliding rod in a clamped mode, an electromagnetic separation groove is formed in the upper side of the collecting box, an electric wire is electrically connected to the right end of the electromagnetic separation groove, a third rotating shaft is rotatably connected to the middle of the electromagnetic separation groove, and the third rotating shaft is in transmission connection with a second rotating shaft through a belt.According to the concret