Dust collector of cement tanker

The utility model discloses a cement tanker dust collector which comprises a supporting truss, a top supporting base is fixedly welded to the top face of the supporting truss, a dust collecting cylinder is fixedly installed in the center of the top end of the top supporting base, a dust discharging cylinder is arranged at the bottom end of the dust collecting cylinder, and a dust outlet is formed in the bottom end of the dust discharging cylinder. The dust outlet is connected with a bottom dust collecting bag through a first fixing mechanism, the top end of the dust collecting cylinder is fixedly connected with a sealing top cover through a sealing flange, and at least four air outlets are formed in the top surface of the sealing top cover and are uniformly distributed in the top surface of the sealing top cover; the air outlet is connected with a top filter bag through a second fixing mechanism, a dust inlet is formed in the side face of the bottom end of the dust collecting barrel, and a mounting supporting