Dual-power ash conveying system

The invention provides a dual-power ash conveying system which comprises an ash collecting unit, an ash conveying unit and a control unit. The ash storage unit comprises an ash storage hopper for storing ash materials; one end of the conveying pipeline is communicated with the discharging opening of the ash collecting hopper, and the other end of the conveying pipeline is communicated with the feeding opening of the ash storage hopper; the air draft mechanism is communicated with the ash storage hopper so as to carry out air draft on the interior of the ash storage hopper, so that negative pressure is formed in the ash storage hopper, and the ash in the ash collecting hopper is sucked into the ash storage hopper through the conveying pipeline; and the air blowing mechanism is communicated with the conveying pipeline so as to blow compressed air into the conveying pipeline to be matched with the air draft mechanism to feed the ash into the ash storage hopper. The air draft mechanism and the air supply mechanis