Globally 2.3 billion people use solid fuels and kerosene for their cooking needs in open fire or inefficient stoves. Inefficient cookstoves cause indoor air pollution by formation of carbon monoxide, smoke, unburnt hydrocarbons. The aim of this research is to design a new multipurpose rocket stove which consumes less fuel and to minimize household air pollution. The design has been prepared in Fusion 360 software and computational fluid dynamics (CFD) analysis is performed using Ansys Fluent software. The fuel for the analysis in straw biomass pellets. The CFD analysis of the favorable design predicts a maximum temperature of 2010 °C inside the combustion chamber. A prototype has been fabricated for testing stove performance. A maximum temperature of 823 °C is measured inside the stove with the fuel as wood. The manufactured stove burns smoke free thereby reducing indoor air pollution and can be used for simultaneous water heating while cooking.