The utility model provides a double -barrelled lamp, including two periosteums, fluorescent tube and light source plate, article two, periosteum along length direction parallel placement to its one side is in opposite directions passed through the hot melt and is realized tangent connection, the periosteum has the holding along length direction the cavity of fluorescent tube, the fluorescent tube inserts make through the pyrocondensation behind the cavity the periosteum cladding in the lateral wall surface of fluorescent tube. The utility model provides a double -barrelled lamp, it is good to assemble simple rigidity to manufacturing cost is than lower.