Straight array type semiconductor laser light source heat dissipation device

The invention belongs to the technical field of laser heat dissipation and particularly relates to a straight array type semiconductor laser light source heat dissipation device, which comprises a substrate. A laser assembly is arranged on the front end surface of the substrate, a heat dissipation mechanism is arranged on the substrate, the heat dissipation mechanism comprises a first air pipe anda fan, the fan is electrically connected with an external power supply, the fan is fixed on the rear side end surface of the substrate, the output end of the fan is fixedly connected with a connecting pipe, and the other end of the connecting pipe is connected with a third air pipe in a sealing mode. As the second air pipe is arranged between the light-emitting bodies in each laser assembly, airgenerated by the fan can enter the third air pipe and enters the first air pipe to be circulated, the air can be discharged from an air gathering pipe on the second air pipe and is blown on each light-emitting body for heat di