Heat dissipation device and communication equipment

The utility model relates to the technical field of communication, in particular to a heat dissipation device and communication equipment. A heat dissipation device comprises a shell, a heat conduction plate and a plurality of heat dissipation fins. The heat conduction plate comprises a heating surface and a heat dissipation surface which are opposite to each other, and a first mounting area is arranged on the heating surface and used for mounting and fitting a first to-be-cooled device; an airflow channel surrounding the heat dissipation surface is formed in the shell, and is provided with anair inlet and an air outlet which are communicated to the outside of the shell; the plurality of heat dissipation fins are all attached to the heat dissipation surface; the plurality of radiating fins are positioned on a radiating air flow path from the air inlet to the air outlet; according to the heat dissipation device provided by the utility model, the heat dissipation surface is provided with the airflow channel, so