The clothes dryer vent airflow system is configured to work in between an exhaust port of an existing clothes dryer and an exhaust line that extends outside of a dwelling. The clothes dryer vent airflow system includes a fan housing that includes a dryer exhaust port on a first side while an intake port and fan housing exhaust port are provided on a second side of the fan housing. The fan housing includes a fan therein, which is adapted to receive accelerated clothes dryer exhaust air from the clothes dryer via the dryer exhaust port as well as ambient air via the intake port.