The solar-only response nature limits the luminescent solar concentrators (LSCs) to solar harvesting rather than responding to other stimuli, which restricts the role of LSCs to energy supply in self-powered internet of things (IoT) systems, and the application potential of LSCs in self-powered devices has been seriously overlooked. In this work, LSCs with photovoltaic and piezoelectric features are proposed for the first time, extending the application scenario of LSCs to self-powered sensors with pressure responsiveness. The luminescent layer of perovskite-polymer composite film is prepared via in situ blade coating with the piezoelectric polymer matrix of poly(vinylidenefluoride-trifluoroethylene) (P(VDF-TrFE)). P(VDF-TrFE) possesses stronger DMF adsorption capacity and higher electroactive phase content than a conventional piezoelectric matrix of poly(vinylidene fluoride) (PVDF), which not only reduces the residual-solvent-induced defects in perovskite luminophores, but also brings a sensitive pressure response to LSCs. The dual-functional LSCs achieve a power conversion efficiency of 1.01% and a output piezoelectric voltage of 0.95 V can be obtained even at a low pressure of 0.16 kPa. A self-powered speed measurement system is demonstrated, and the actual speed measurement is carried out. Such dual-functional LSCs show great potential in self-powered electrical devices, which can be applied to low-energy-consumption IoT systems and other commercial smart home products.