The invention discloses a laser heat dissipator with multiple heat dissipation functions. The laser heat dissipator includes an installation piece, protection edges, heat dissipation pieces, a first plug-in hole, a second plug-in hole, a first fastening bolt, a second fastening bolt, a communicating cylinder, an installation edge, a vertical plate, a heat dissipation motor, a wind blade, an adjustable disassembly clamping plate structure, an adjustable water-cooled pipe box structure and a detachable support fixing rack structure; the protection edges are separately welded on the upper and lower parts on the right surface of the installation piece; the heat dissipation pieces are welded on the right surface of the installation piece; and the upper and lower sides inside the installation piece are respectively provided with the first and second plug-in holes. The beneficial effects of the laser heat dissipator are that, through the arrangement of the laser heat dissipator, an installation plate and a limit rod can be more reasonably sleeved in appropriate positions; and through the fixing of and installation bolt, the installation modes of the adjustable disassembly clamping plate structure can be increased, and convenient usage can be realized.