A heat dissipation apparatus and a portable device are provided. The heat dissipation apparatus includes at least two heat sinks, which are connected to each other by a heat conductive tube; and a fan fixed onto one of the at least two heat sinks; the fan has an inlet vent and at least two outlet vents, the respective outlet vents have different discharging directions, a detachable shield plate is disposed at each of the outlet vents, a respective one of the outlet vents discharges an airflow outside when a respective one of the shield plates is drawn out.