  In this note, we show a global existence and blow-up of the positive
solutions to the initial-boundary value problem of the nonlinear porous medium
equation related to Baouendi-Grushin operator. Our approach is based on the
concavity argument and the Poincar\'e inequality for Baouendi-Grushin vector
fields from [35], inspired by the recent works [28] and [29].
