Dual-purpose hopper for boiler

The invention discloses a dual-purpose hopper for a boiler. The dual-purpose hopper comprises a boiler body, wherein a fuel hopper body is installed on one side of the boiler body, the boiler body and the bottom of the fuel hopper body is communicated through a channel, and a conveyer is arranged in the channel; a locking device is arranged on the fuel hopper body and located at a position close to the conveyer, the locking device comprises an outer cylinder and an inner conveying roller, a plurality of through holes are formed in the wall of the outer cylinder, and a plurality of grooves are formed in the inner conveying roller; a baffle is formed on the outer cylinder and extends in the tangential direction of the outer cylinder, and the outer edge of the baffle makes contact with the inner side wall of the fuel hopper body. In this way, the fuel hopper body is divided through the baffle so that fire coal and biomass granular fuel can be placed in the same fuel hopper body at the same time, space is saved greatly, conveyance can be achieved with one set of conveying equipment, potential safety hazards are eliminated, operation is facilitated, production efficiency is improved, and energy is saved to a certain degree.