NOVELTY - The device (1) has a housing (10) surrounding a cylindrical center body (101). Inner directing boards (230) are arranged adjacent to blades of a runner (30). Outer directing boards (210) extend inside and along length and depth of two directing pipelines (103). Intermediate directing boards (220) extend from a middle zone of the directing pipelines to the inner directing boards. A guiding unit guides internal flows of the runner and includes three guiding boards and vortex inhibitors arranged in an interior and throughout of the runner.    USE - Cross flow type water turbine device for generating electricity from movement of tides and waves of sea during construction of dams.    ADVANTAGE - The device can capture and direct flows in an optimized manner, and allows better pick up and acceleration of flows entering and leaving the device while counting average directions of flows, thus improving efficiency of energy generation. The device extracts energy of ocean in a format of waves or sea currents, so that the turbine device can use industrial form where single water turbine is sufficient to generate electricity for operation with investment and economic lack ferocity, thus improving utilization efficiency of resource. The device obtains flows, where dimensions of the same turbine are smaller, thus reducing cost of investment by materials. The device reduces a cross-sectional area used by the water turbine in comparison with axial turbines, thus achieving multifunctionality as the turbine is used in modality for sea currents, and improving economic efficiency as investment cost small is compared with other turbines for sea currents, making the turbine to be versatile, visible and environment-friendly as visual pollution is avoided, obtaining energy to be clean and constant as the turbine device is totally submerged for sea currents, and ensuring simple manufacture since the device avoids need to materialize the turbine, and easy installation.    DESCRIPTION OF DRAWING(S) - The drawing shows a front perspective view of a cross flow type water turbine device.    Cross flow type water turbine device (1)    Housing (10)    Runner (30)    Cylindrical center body (101)    Directing pipelines (103)    Outer directing boards (210)    Intermediate directing boards (220)    Inner directing boards (230)