The invention discloses a water-based fuel domestic small stove which is characterized in that a stove body is formed by a four-layer three-space structure, wherein an outer space layer is a temperature preservation layer; an intermediate space layer is a ventilating air supplying layer; three layers of ventilating eyeholes in height are uniformly distributed at the periphery in the stove, and the inner layer space is a combustion chamber; a blower is connected with the intermediate space layer, and air is sent into the stove by the blower for supporting combustion; a round iron ring is installed at the bottom in the combustion chamber, and a combustion base stack is placed on the round iron ring; an alcohol or oil fuel sprayer is installed on the intermediate layer of the combustion chamber; a water-based fuel sprayer is installed on the upper layer of the combustion chamber; a water-based fuel liquid conveying pipeline and an alcohol or oil fuel liquid conveying pipeline are respectively installed on the alcohol or oil fuel sprayer and the water-based fuel sprayer; and a water-based fuel switch and a flow rate control device as well as an alcohol or oil fuel switch and a control flow rate device are respectively installed on each liquid conveying pipeline, and are respectively connected with a water conveying tank and an alcohol or oil conveying tank outside the stove body. The water-based fuel domestic small stove is easy to implement, is easy to operate, has high heat combustion value, has fierce flames, is combustion durable, is smokeless and tasteless, is low in cost, and is energy-saving and environment-friendly.