Flexible coal breaking prevention device for coal bunker

The invention discloses a flexible coal breaking prevention device for a coal bunker, which comprises a coal feeder, a raw coal bunker, a flexible coal conveying barrel and a sealing sleeve, a coal conveying pipe is arranged at the top of one end of the coal feeder, and the raw coal bunker is positioned at the upper part of the coal feeder; the flexible coal conveying barrel is fixedly connected to an outlet of the raw coal bunker through an annular frame, and an outlet in the bottom end of the flexible coal conveying barrel is opposite to an opening of the coal conveying pipe. The sealing sleeve sleeves the outer side of the flexible coal conveying barrel in a clearance manner, a plurality of loosening device assemblies are arranged on the sealing sleeve, the loosening device assemblies are connected with the flexible coal conveying barrel, and the loosening device assemblies are used for performing extrusion and stretching adjustment on the flexible coal conveying barrel. The downward flowing tangential for