A dump truck or trailer for hauling and dumping dry bulk solids conventionally by gravity and also having the capability of conveying the solids upward to a storage facility. The unit includes a container mounted to a frame on wheels. A hydraulic ram tilts the container for dumping through a rear outlet. A pneumatic conveyor is carried by the frame with an intake at the rear of the container. A gate allows the solids to be dumped conventionally by gravity, or to be blown to a storage facility by the pneumatic conveyor.