Porous media are very useful tools used for energy management. They are used in vast fields such as in solar heat exchangers to enhance heat transfer for building applications or in electronic equipment to facilitate heat removal from hot elements. This work presents a numerical study on the potential of using multi-layered porous covers to cool discrete solid blocks positioned inside in a two-dimensional channel. In the first step, four porous covers with three layers, including Case A (all layers with maximum permeability), Case B (all layers with minimum permeability), Case C (increasing permeability as going to the outside of porous cover), and Case D (decreasing permeability as going to the outside of the porous cover). The configurations are inspected in three Reynolds numbers, including Re = 500, 1000, 1500. The results show that Case A and Case D have better performances as compared to other cases. Case D guides the flow around the first block, located at the upstream, and improves heat transfer, especially at higher Reynolds numbers. Finally, a new case based on Case D and Case A is proposed. This case has 6% and 10% better overall heat transfer than Case A at Re = 1000 and Re = 1500, respectively. As well as, the Nusselt number of Case E is about 180% at Re = 500, 220% at Re = 1000, and 250% greater than the base case where porous cover is not used.