Dust removal device of glass scribing cutting tool bit

The utility model relates to a dust removal device for a glass scribing cutting tool bit, and the dust removal device comprises a support (1) which is used for being installed on the tool bit (10); the air suction mechanism (2) is rotatably arranged on the bracket (1), so that an air suction end (20) of the air suction mechanism (2) is arranged opposite to the tool bit (10); the air blowing mechanism (3) is rotatably arranged on the bracket (1), so that an air outlet end (30) of the air blowing mechanism (3) is opposite to the tool bit (10), and the air blowing mechanism (3) blows air to an air suction end (20) of the air suction mechanism (2); the first locking piece is used for limiting rotation of the air suction mechanism (2); and the second locking piece is used for limiting the rotation of the blowing mechanism (3). The dust removal device of the glass lineation cutting tool bit can remove glass dust at the glass lineation cutting tool bit, reduces abrasion of the tool bit, prolongs the service life, an