Square steel pipe port processing device

The utility model discloses a square steel pipe port processing device. Square tube processing frame, the upper end of the square tube processing frame is fixedly connected with a conveying roller; two translation slide rails are arranged on the left side of the conveying roller; the two translation slide rails are arranged at the upper part of the square tube treatment frame in parallel; a translation sliding plate is arranged on the upper side of the square tube treatment frame; the translation sliding plate is in sliding connection with the translation sliding rail; a driving motor is fixedly connected to the translation sliding plate; the rotating end of the driving motor is fixedly connected with a connecting rotating rod; the end, away from the driving motor, of the connecting rotating rod is sleeved with an inward-extending sleeve. The inner extending sleeve is in sliding connection with the connecting and rotating rod; a brush roller sleeve is sleeved on the inner extending sleeve; the brush roller sl