Composite blast pipe construction method

The invention discloses a composite blast pipe construction method including the following steps of 1) producing plates for making composite blast pipes, 2) dividing and cutting the plates for making the composite blast pipes according to requirements of molding dimensions, 3) bonding the parts of the divided and cut plates for making the composite blast pipes to form the composite blast pipes, and 4) connecting and lifting the composite blast pipes formed by means of bonding and connecting. The plates for making the composite blast pipes include outer colored steel plates, inner colored steel plates and phenolic aldehyde plates sandwiched between the outer colored steel plates and the inner colored steel plates. In the step of connecting the plates for making the composite blast pipes, the joints of the outer colored steel plates are turned and wrapped and fixedly connected by rivets, the joints of the phenolic aldehyde plates are connected by means of adhesive liquid, and the joints of the inner colored ste