A portable needle destroying device for safely destroying a needle while attached to a syringe housing. The needle destroying device includes a housing, an opening in the housing to receive a needle and syringe housing, and a flexible cover to substantially cover the opening in the housing. The device further includes a surface fixed within the interior of the housing and away from the opening, the surface in electrical resistive capacity, a battery in electrical communication with the surface, and a motion sensor proximate to the opening and in communication with the battery. When a needle is inserted through the opening, the motion sensor activates the battery which heats the surface, the needle contacts the surface and melts upon contact.