Hot shearing machine

The utility model provides a hot shearing machine which comprises a workbench, a guide pipe, a conveying device, a limiting device and a cutting device, the guide pipe, the conveying device, the limiting device and the cutting device are sequentially arranged in the sectional material conveying direction, and the workbench is provided with a mounting plate arranged in the vertical direction; the limiting device comprises a mounting seat, the mounting seat is provided with a first channel for the profile to penetrate through, and the first channel transversely penetrates through the two end faces of the mounting seat. The cutting device comprises a fixing assembly, a driving device and a cutter used for cutting the profile. The fixing assembly and the driving device are both mounted on the mounting plate, the fixing assembly is provided with a second channel for the profile, and the second channel transversely penetrates through the two end faces of the fixing assembly; a gap communicating with the second chan