Water-cooling heat dissipation device for building heating

The utility model relates to a heating and ventilation heat dissipation device, in particular to a building heating and ventilation general water cooling heat dissipation device which comprises a ventilation groove and a fan assembly, the fan assembly comprises a containing frame and a fan, the fan is installed in the containing frame, the containing frame is fixed in the ventilation groove through a locking assembly, and the locking assembly is fixed in the ventilation groove. The fan is started to drive airflow to pass through the ventilation groove, the air inlet end and the air outlet end of the ventilation groove are provided with communicated heating and ventilation pipelines, and the air inlet end and the air outlet end are correspondingly provided with connectors for connecting in and connecting out of the heating and ventilation pipelines. Most pipelines in the heating and ventilation pipeline can make contact with flowing airflow conveniently, cooling water in the heating and ventilation pipeline is