Rolling type fire grate and waste incineration boiler

The invention relates to the technical field of environment-friendly heat energy, and provides a rolling type fire grate and a waste incineration boiler. The rolling type fire grate is used for bearing combustion fuel and pushing combustion products. The rolling type furnace comprises a transmission mechanism and a driving mechanism. The transmission mechanism comprises a plurality of rollers which are arranged above the water tank side by side, and the adjacent rollers are arranged at intervals to form a gap allowing airflow to pass through; the driving mechanism is used for driving the roller to rotate in the axial direction in a one-way mode, and a conveying face for driving fuel to be conveyed in a one-way mode is formed. When the rolling type fire grate works, household garbage to be combusted is located on the conveying face formed by the rollers, the household garbage moves along with the conveying face while being combusted, the rollers are in the rotating state at the moment, and therefore the househ