Material conveying device and material conveying equipment

A material conveying device comprises a body and a plurality of connecting pieces, the connecting pieces are connected at both ends of the body, the connecting piece comprises a plurality of first connecting pieces and a plurality of second connecting pieces, the first connecting pieces are provided with buffer units, the second connecting pieces are connected at the bottom of the first connecting pieces and are internally provided with at least two rolling unit groups, and the two rolling unit groups respectively comprise a horizontal rolling unit and a vertical rolling unit. Therefore two material conveying devices are arranged on two conveying tracks and two return tracks for storing and conveying the materials. The utility model also provides material conveying equipment.