Device for filling and emptying wooden wine barrels comprising a tubular body shaped like a cane, which comprises: a first tubular part with a first inlet and outlet connection arrangement at its upper end; an elbow tubular part , following said first tubular part a straight tubular part , following said elbow tubular part , the lower end of which has a first connection arrangement ; a frustoconical piece , covered with a film with sealing properties, arranged solidly around the straight tubular part , near to the elbow-shaped tubular part ; an extension tubular piece , the upper end of which has a second connection arrangement , suitable for connection to said first connection arrangement ; wherein the device for filling and emptying wooden wine barrels may also comprise an intermediate tubular extension piece , the upper end of which has a third connection arrangement , suitable for being connected to the first connection arrangement and a fourth connection arrangement , suitable for be connected to the second connection arrangement; characterized in that said tubular body comprises a tubular piece of smaller diameter than the straight tubular part, wherein said tubular piece internally connects a first hole , arranged in the wall of the straight tubular part below the frustoconical piece and a second hole , arranged above the frustoconical piece , said tubular piece extending outwards and whose outer end has a second input and output connection arrangement and in that the extension tubular piece has a bottom wall at its lower end, which has a threaded hole in its centre, which serves as support for a movable stop , whose threaded rod is arranged to move in said threaded hole, and also being arranged in a side wall of the extension tubular piece near to said lower end at least one third hole . a first tubular part with a first inlet and outlet connection arrangement at its upper end; an elbow tubular part , following said first tubular part a straight tubular part , following said elbow tubular part , the lower end of which has a first connection arrangement ; a frustoconical piece , covered with a film with sealing properties, arranged solidly around the straight tubular part , near to the elbow-shaped tubular part ; an extension tubular piece , the upper end of which has a second connection arrangement , suitable for connection to said first connection arrangement ; wherein the device for filling and emptying wooden wine barrels may also comprise an intermediate tubular extension piece , the upper end of which has a third connection arrangement , suitable for being connected to the first connection arrangement and a fourth connection arrangement , suitable for be connected to the second connection arrangement; characterized in that said tubular body comprises a tubular piece of smaller diameter than the straight tubular part, wherein said tubular piece internally connects a first hole , arranged in the wall of the straight tubular part below the frustoconical piece and a second hole , arranged above the frustoconical piece , said tubular piece extending outwards and whose outer end has a second input and output connection arrangement and in that the extension tubular piece has a bottom wall at its lower end, which has a threaded hole in its centre, which serves as support for a movable stop , whose threaded rod is arranged to move in said threaded hole, and also being arranged in a side wall of the extension tubular piece near to said lower end at least one third hole . <EOS>