Portable and foldable trash can to reuse plastic bags, of the type comprising a vertical bar (1) linked at its lower end to a horizontal support base (2), characterized essentially because the vertical bar (1) is related in its upper end with a circular piece as cover (3) which in turn is articulated, by hinge or similar, with a double ring (4), which comprises an outer ring and an inner ring related to at least one piece of tightening and retention (5) of the palometa or similar type, leaving the mouth of a first bag (A) trapped in the double ring (4). (Machine-translation by Google Translate, not legally binding)1. Papelera portátil y plegable para reutilizar bolsas de plástico, del tipo que comprende una barra vertical (1) vinculada en su extremo inferior a una base horizontal (2) de apoyo, caracterizada esencialmente porque la barra vertical (1) está relacionada en su extremo superior con una pieza circular a modo de tapa (3) que a su vez se articula, mediante bisagra o similar, con un doble aro (4), el cual comprende un aro exterior y un aro interior relacionados con al menos una pieza de apriete y retención (5) del tipo palometa o similar, quedando la embocadura de una primera bolsa (A) atrapada en el doble aro (4).