Quick pipe joint

The invention relates to a quick pipe joint. The quick pipe joint comprises a first joint and a second joint; the first joint comprises a first cylinder with a stepped hole at one end, a through holeis formed in the cylinder wall of the first cylinder, a positioning column is inserted into the through hole, and a spring sleeves the end, located outside the first cylinder, of the positioning column; the second joint comprises a second cylinder with a joint core at one end, the joint core extends into the stepped hole and is attached to the hole wall of the stepped hole, a blind hole is formedin the outer wall of the joint core, the position of the blind hole is matched with the position of the through hole, and the end, penetrating through the through hole, of the positioning column can be inserted into the blind hole; and a nut lock ring further sleeves the outer wall of the first cylinder or the outer wall of the second cylinder, can press the positioning column into the first cylinder, and can make the firs