Abstract: Two-dimensional MXene materials have significant potential in electromagnetic interference (EMI) shielding. However, their practical applications are limited by several issues. Strong secondary reflection pollution arises from impedance mismatch. Poor thermal conduction pathways cause slow electrothermal response. Nanosheet self-stacking leads to mechanical brittleness. This study used vacuum-assisted filtration to introduce one-dimensional multi-walled carbon nanotubes (MWCNTs) and in-situ polymerized aramid@polypyrrole nanofibers (ANF@PPy) into MXene interlayers. The approach constructed a bio-inspired layered composite film with a "brick (MXene)-mortar (ANF@PPy and MWCNTs)" structure. The results showed that the addition of MWCNTs reduced the reflection coefficient from 0.953 (for MXene-ANF@PPy) to 0.908. This alleviated secondary electromagnetic pollution caused by reflection. Meanwhile, the MWCNTs formed continuous thermal conduction channels. These channels enabled the film to heat up to 120.5℃ within 10 s under a 3 V driving voltage. ANF@PPy fibers increased the tensile strength to 19.32 MPa through spatial separation and hydrogen bonding crosslinking. This value is nearly eight times that of pure MXene. When the mass ratio of MXene to MWCNTs was 4∶1, the film achieved an electrical conductivity of 1296.4 S/cm. Its EMI shielding effectiveness in the X-band reached 49.61 dB. This work reveals the synergistic functional mechanism among the multiple components. It also provides a new strategy to break the performance bottlenecks of MXene-based materials in flexible EMI shielding and thermal management applications.